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Best R290 Refrigerant Leak Detector of 2026
Last updated on 14/05/2026
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1
Elitech Refrigerant Gas Leak Detector ILD-200 10 Yrs Infrared Sensor Life, Halogen Freon Sniffer, Detection A2L R32 R1234yf for Air Conditioning Automotive HVACR
Elitech
6% Off
Why we love it
Highly sensitive and accurate.
Detects all halogen gases.
Long service life.
Main Highlights
Infrared Leak Detector: Compared with the heated diode leak detector, the infrared refrigerant leak detector has strong anti-interference ability, faster response speed, more accurate and longer service life.
Higher Sensitivity: Adjustable sensitivity with High/Medium/Low levels and the maximum sensitivity is up to 4g/yr.
Detecting All Halogenated Gases and A2L: It can detect all kinds of halogen refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs and mixed refrigerants such as R11/R32/R404a/R410a/R600a/R1234yf and Blends such as AZ-50, HP62, MP39 etc.
2.8' Large Screen: Do not missing any leakage. The peak display clearly indicates the orientation of the leak detection point and provides users with a quiet working environment.
Wide range of environmental adaptability: Suitable for working environments from -10°C to 52°C and storage conditions from -20°C to 60°C, ensuring stable operation in different climates and regions.
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9.8
Exceptional
Check Price
9.8
Exceptional
Elitech
Elitech Refrigerant Gas Leak Detector ILD-200 10 Yrs Infrared Sensor Life, Halogen Freon Sniffer, Detection A2L R32 R1234yf for Air Conditioning Automotive HVACR
6% Off
Check Price
Show More
Why we love it
Highly sensitive and accurate.
Detects all halogen gases.
Long service life.
Main Highlights
Infrared Leak Detector: Compared with the heated diode leak detector, the infrared refrigerant leak detector has strong anti-interference ability, faster response speed, more accurate and longer service life.
Higher Sensitivity: Adjustable sensitivity with High/Medium/Low levels and the maximum sensitivity is up to 4g/yr.
Detecting All Halogenated Gases and A2L: It can detect all kinds of halogen refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs and mixed refrigerants such as R11/R32/R404a/R410a/R600a/R1234yf and Blends such as AZ-50, HP62, MP39 etc.
2.8' Large Screen: Do not missing any leakage. The peak display clearly indicates the orientation of the leak detection point and provides users with a quiet working environment.
Wide range of environmental adaptability: Suitable for working environments from -10°C to 52°C and storage conditions from -20°C to 60°C, ensuring stable operation in different climates and regions.
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Value for Money
2
ALD-200 PRO 2-in-1 Combustible & Refrigerant Gas Leak Detector, HVAC Leak Detector with Audible & Visual Alarm, 16-Inch Flexible Probe, Large 2.6" Display, Detects R32, R290, R134a, R1234yf
Therm La Mode
Why we love it
Dual gas detection capabilities.
High sensitivity for accurate results.
Flexible probe for easy access.
Main Highlights
Advanced Semiconductor Sensor – Features three adjustable sensitivity modes, with a maximum sensitivity of 0.14 oz./yr., ensuring precise and efficient gas leak detection.
16-Inch Flexible Probe – Extends into tight or hard-to-reach areas, making it ideal for industrial inspections.
Visual & Audible Alarm System – Alerts increase with gas concentration levels. The MUTE button allows quick silencing of the buzzer when needed.
2.6' Large Color Display – Unique bar graph mode visualizes gas concentration levels and changes color as the leak source approaches for intuitive detection.
Peak Capture Function – Clearly pinpoints the exact leak location, ensuring fast and accurate troubleshooting.
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9.7
Exceptional
Check Price
9.7
Exceptional
Therm La Mode
ALD-200 PRO 2-in-1 Combustible & Refrigerant Gas Leak Detector, HVAC Leak Detector with Audible & Visual Alarm, 16-Inch Flexible Probe, Large 2.6" Display, Detects R32, R290, R134a, R1234yf
Check Price
Show More
Why we love it
Dual gas detection capabilities.
High sensitivity for accurate results.
Flexible probe for easy access.
Main Highlights
Advanced Semiconductor Sensor – Features three adjustable sensitivity modes, with a maximum sensitivity of 0.14 oz./yr., ensuring precise and efficient gas leak detection.
16-Inch Flexible Probe – Extends into tight or hard-to-reach areas, making it ideal for industrial inspections.
Visual & Audible Alarm System – Alerts increase with gas concentration levels. The MUTE button allows quick silencing of the buzzer when needed.
2.6' Large Color Display – Unique bar graph mode visualizes gas concentration levels and changes color as the leak source approaches for intuitive detection.
Peak Capture Function – Clearly pinpoints the exact leak location, ensuring fast and accurate troubleshooting.
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3
Aprvtio ALD-200 PRO Refrigerant Leak Detector, Freon Leak Detector A2L with 3 Sensitivity Modes, Heated Diode Leak Detector Conforms to EN14624 Suitable for Air Conditioner, Car, Refrigerator Repairs
Therm La Mode
Why we love it
High accuracy and sensitivity.
User-friendly with visual alerts.
Detects all halogenated gases.
Main Highlights
【Designed for Modern Refrigerants (A1 / A2L / A3 Ready)】:This HVAC leak detector is fully compatible with next-generation refrigerants, including R410A, R32, R454B, R290, and R600—ensuring readiness for evolving regulations and system upgrades.
【Meets Industry Standards for Reliable Performance】The refrigerant leak detector hvac is CE certified and developed following EN14624 standards. Designed for modern systems, it supports A2L refrigerants and aligns with SAE J2791 & J2913, providing dependable performance for HVAC and automotive professionals.
【High Sensitivity for Micro Leaks】 With adjustable sensitivity up to 0.14 oz./yr., this freon sniffer quickly pinpoints tiny pinhole leaks and slow refrigerant loss that traditional dye or soap methods often miss—saving hours of troubleshooting time.
【16-Inch Flexible Probe for Tight Spaces】 The 16-inch flexible sensor probe of this ac leak detector enables easy access to confined and hard-to-reach areas during HVAC system inspections—essential for navigating complex coil assemblies and cramped equipment rooms.
【Visual & Audible Alarms with Mute Function】 As a reliable refrigerant detector, it provides a 2.6-inch large display with a distinctive bar graph that visually indicates gas concentration levels and changes color as you approach the leak source. The buzzer can be toggled on or off via the MUTE button for quiet operation.
【Adjustable Sensitivity & False Alarm Reduction】 Three sensitivity levels allow you to fine-tune detection when close to the leak source. Easily lower sensitivity to prevent false alarms in high-concentration areas—giving HVAC professionals better control and accuracy when using this R454B refrigerant leak detector during inspections.
【Wide Refrigerant Compatibility – A1, A2L, A3】This ac leak detector covers a full spectrum of gases including [CFCs: R11, R12, R13, R113, R114, R115, R500, R502, R503] [HCFCs: R22, R123, R124, R141b, R142b, R401A, R401B, R402A, R402B, R408A, R409A] [HFCs: R32, R125, R134a, R143a, R152a, R404A, R407C, R410A, R410B, R417A, R422D, R427A, R438A, R448A, R449A, R452B, R453A, R507] [HFOs: R1234yf, R1234ze(E), R1233zd(E), R1336mzz(Z), R514A, R1224yd(Z), R1243zf] [Blends: R401A, R404A, R407C, R410A, R507, AZ-50 (R507), HP62 (R404A), MP39 (R401A), NU-22 (R422D)] [PFC: PFC-14, PFC-116, PFC-218, etc] [HCs(Hydrocarbon): R50, R290, R600a etc.][5%hydrogen/95% nitrogen Racer Gas]
【3000mAh Rechargeable Battery for Field Use】 Built-in high-capacity rechargeable battery supports multiple service calls on a single charge. No need for disposable batteries—making this r134a leak detector a perfect choice for field technicians, contractors, and small businesses needing a reliable freon sniffer that stays powered all day.
"【Optional Replaceable Probe for Efficient Field Maintenance】 The r32 leak detector supports an optional replaceable probe (sold separately), allowing technicians to quickly swap sensors on-site when needed. Using a replacement probe helps maintain continuous operation during long maintenance tasks, keeps inspections efficient, and reduces costs compared to replacing the entire unit."
【2.8-inch TFT Color Display】Equipped with an advanced color graphic display, this R410a leak detector ensures optimal visibility and readability in both low-light conditions such as basements and brightly lit outdoor environments.
Show More
9.6
Superb
Check Price
9.6
Superb
Therm La Mode
Aprvtio ALD-200 PRO Refrigerant Leak Detector, Freon Leak Detector A2L with 3 Sensitivity Modes, Heated Diode Leak Detector Conforms to EN14624 Suitable for Air Conditioner, Car, Refrigerator Repairs
Check Price
Show More
Why we love it
High accuracy and sensitivity.
User-friendly with visual alerts.
Detects all halogenated gases.
Main Highlights
【Designed for Modern Refrigerants (A1 / A2L / A3 Ready)】:This HVAC leak detector is fully compatible with next-generation refrigerants, including R410A, R32, R454B, R290, and R600—ensuring readiness for evolving regulations and system upgrades.
【Meets Industry Standards for Reliable Performance】The refrigerant leak detector hvac is CE certified and developed following EN14624 standards. Designed for modern systems, it supports A2L refrigerants and aligns with SAE J2791 & J2913, providing dependable performance for HVAC and automotive professionals.
【High Sensitivity for Micro Leaks】 With adjustable sensitivity up to 0.14 oz./yr., this freon sniffer quickly pinpoints tiny pinhole leaks and slow refrigerant loss that traditional dye or soap methods often miss—saving hours of troubleshooting time.
【16-Inch Flexible Probe for Tight Spaces】 The 16-inch flexible sensor probe of this ac leak detector enables easy access to confined and hard-to-reach areas during HVAC system inspections—essential for navigating complex coil assemblies and cramped equipment rooms.
【Visual & Audible Alarms with Mute Function】 As a reliable refrigerant detector, it provides a 2.6-inch large display with a distinctive bar graph that visually indicates gas concentration levels and changes color as you approach the leak source. The buzzer can be toggled on or off via the MUTE button for quiet operation.
【Adjustable Sensitivity & False Alarm Reduction】 Three sensitivity levels allow you to fine-tune detection when close to the leak source. Easily lower sensitivity to prevent false alarms in high-concentration areas—giving HVAC professionals better control and accuracy when using this R454B refrigerant leak detector during inspections.
【Wide Refrigerant Compatibility – A1, A2L, A3】This ac leak detector covers a full spectrum of gases including [CFCs: R11, R12, R13, R113, R114, R115, R500, R502, R503] [HCFCs: R22, R123, R124, R141b, R142b, R401A, R401B, R402A, R402B, R408A, R409A] [HFCs: R32, R125, R134a, R143a, R152a, R404A, R407C, R410A, R410B, R417A, R422D, R427A, R438A, R448A, R449A, R452B, R453A, R507] [HFOs: R1234yf, R1234ze(E), R1233zd(E), R1336mzz(Z), R514A, R1224yd(Z), R1243zf] [Blends: R401A, R404A, R407C, R410A, R507, AZ-50 (R507), HP62 (R404A), MP39 (R401A), NU-22 (R422D)] [PFC: PFC-14, PFC-116, PFC-218, etc] [HCs(Hydrocarbon): R50, R290, R600a etc.][5%hydrogen/95% nitrogen Racer Gas]
【3000mAh Rechargeable Battery for Field Use】 Built-in high-capacity rechargeable battery supports multiple service calls on a single charge. No need for disposable batteries—making this r134a leak detector a perfect choice for field technicians, contractors, and small businesses needing a reliable freon sniffer that stays powered all day.
"【Optional Replaceable Probe for Efficient Field Maintenance】 The r32 leak detector supports an optional replaceable probe (sold separately), allowing technicians to quickly swap sensors on-site when needed. Using a replacement probe helps maintain continuous operation during long maintenance tasks, keeps inspections efficient, and reduces costs compared to replacing the entire unit."
【2.8-inch TFT Color Display】Equipped with an advanced color graphic display, this R410a leak detector ensures optimal visibility and readability in both low-light conditions such as basements and brightly lit outdoor environments.
Show More
4
Aprvtio ALD-200 Refrigerant Leak Detector, Freon Leak Detector Sniffer with 3000 mAh Battery,16-inch Probe with UV & LED light, 2.8' Large Screen, Halogen Detector for A2L R32 R454B R140A R134A
Therm La Mode
Why we love it
Highly sensitive and accurate.
Visual and audible alarms.
Detects all halogenated gases.
Main Highlights
【Upgraded Sensor & 3-in-1 Detection】 Equipped with the aprvtio next-generation heat diode sensor, this ac leak detector goes beyond traditional units to accurately locate leaks in A1 (R410A), A2L (R32, R454B), A3 (R290, R600) refrigerants and other gases such as H2/N2 tracer gas—covering all types with true 3-in-1 detection capability.
【High Sensitivity & Micro Leak Detection】 With sensitivity adjustable up to 0.14 oz./yr., this freon sniffer quickly pinpoints even the smallest micro leaks that soap bubbles or dye tests often miss, saving hours of troubleshooting.
【Audible & Visual Alarms with Mute】 As a reliable freon detector, it provides a clear 2.8-inch TFT color display showing concentration levels, while the beep frequency increases as the leak intensifies. The mute button allows quiet operation when needed.
【2.8-inch TFT Color Display】Equipped with an advanced color graphic display, this R134a leak detector ensures optimal visibility and readability in both low-light conditions such as basements and brightly lit outdoor environments.
【Smart Functional Capabilities】Intelligent features including Peak Mode (captures the maximum leakage reading) and Reset Function (minimizes false alarms by recalibrating the sensor) make this R290 leak detector a user-friendly and reliable tool for HVAC professionals.
【Durable, Oil-Resistant & Field-Ready】 Built with an oil-resistant and impact-resistant housing, this freon sniffer withstands harsh job site conditions. The rechargeable battery supports a full day of service, making it ready whenever you are.
【Wide Refrigerant Compatibility】AC leak detector is calibrated to accurately locate A1, A2, A2L, A3 refrigerants leaks. It covers a full spectrum of gases: [CFCs: R11,R12,R13,R113,R114,R115,R500,R502,R503] [HCFCs: R22, R123,R124,R141b,R142b,R401A,R401B,R402A,R402B,R408A,R409A] [HFCs: R32,R125,R134a,R143a,R152a, R404A, R407C, R410A, R410B, R417A, R422D, R427A, R438A, R448A, R449A, R452B, R453A, R507] [HFOs: R1234yf,R1234ze(E), R1233zd(E), R1336mzz(Z), R514A, R1224yd(Z), R1243zf] [Blends: R401A, R404A, R407C, R410A, R507, AZ-50 (R507), HP62 (R404A), MP39 (R401A), NU-22 (R422D)] [PFC: PFC-14, PFC-116, PFC-218, etc] [HCs(Hydrocarbon): R50, R290, R600a etc.][5%hydrogen/95% nitrogen Racer Gas]
【Easy Setup & Accurate Calibration】Designed for ease of use: fully charge before first use, warm up the sensor, and perform auto-zero calibration in clean air. The Peak Mode and Reset Function of the hvac tools help reduce false alarms, ensuring consistent and accurate readings every time.
【Professional HVAC & DIY Ready】Trusted by HVAC technicians, maintenance professionals, and DIY enthusiasts, the ALD-200 r454b leak detector is ideal for quick leak detection on heat pumps, air conditioners, refrigeration units, and automotive A/C systems. Detects leaks with precision comparable to high-end detectors at a fraction of the cost.
Show More
9.5
Superb
Check Price
9.5
Superb
Therm La Mode
Aprvtio ALD-200 Refrigerant Leak Detector, Freon Leak Detector Sniffer with 3000 mAh Battery,16-inch Probe with UV & LED light, 2.8' Large Screen, Halogen Detector for A2L R32 R454B R140A R134A
Check Price
Show More
Why we love it
Highly sensitive and accurate.
Visual and audible alarms.
Detects all halogenated gases.
Main Highlights
【Upgraded Sensor & 3-in-1 Detection】 Equipped with the aprvtio next-generation heat diode sensor, this ac leak detector goes beyond traditional units to accurately locate leaks in A1 (R410A), A2L (R32, R454B), A3 (R290, R600) refrigerants and other gases such as H2/N2 tracer gas—covering all types with true 3-in-1 detection capability.
【High Sensitivity & Micro Leak Detection】 With sensitivity adjustable up to 0.14 oz./yr., this freon sniffer quickly pinpoints even the smallest micro leaks that soap bubbles or dye tests often miss, saving hours of troubleshooting.
【Audible & Visual Alarms with Mute】 As a reliable freon detector, it provides a clear 2.8-inch TFT color display showing concentration levels, while the beep frequency increases as the leak intensifies. The mute button allows quiet operation when needed.
【2.8-inch TFT Color Display】Equipped with an advanced color graphic display, this R134a leak detector ensures optimal visibility and readability in both low-light conditions such as basements and brightly lit outdoor environments.
【Smart Functional Capabilities】Intelligent features including Peak Mode (captures the maximum leakage reading) and Reset Function (minimizes false alarms by recalibrating the sensor) make this R290 leak detector a user-friendly and reliable tool for HVAC professionals.
【Durable, Oil-Resistant & Field-Ready】 Built with an oil-resistant and impact-resistant housing, this freon sniffer withstands harsh job site conditions. The rechargeable battery supports a full day of service, making it ready whenever you are.
【Wide Refrigerant Compatibility】AC leak detector is calibrated to accurately locate A1, A2, A2L, A3 refrigerants leaks. It covers a full spectrum of gases: [CFCs: R11,R12,R13,R113,R114,R115,R500,R502,R503] [HCFCs: R22, R123,R124,R141b,R142b,R401A,R401B,R402A,R402B,R408A,R409A] [HFCs: R32,R125,R134a,R143a,R152a, R404A, R407C, R410A, R410B, R417A, R422D, R427A, R438A, R448A, R449A, R452B, R453A, R507] [HFOs: R1234yf,R1234ze(E), R1233zd(E), R1336mzz(Z), R514A, R1224yd(Z), R1243zf] [Blends: R401A, R404A, R407C, R410A, R507, AZ-50 (R507), HP62 (R404A), MP39 (R401A), NU-22 (R422D)] [PFC: PFC-14, PFC-116, PFC-218, etc] [HCs(Hydrocarbon): R50, R290, R600a etc.][5%hydrogen/95% nitrogen Racer Gas]
【Easy Setup & Accurate Calibration】Designed for ease of use: fully charge before first use, warm up the sensor, and perform auto-zero calibration in clean air. The Peak Mode and Reset Function of the hvac tools help reduce false alarms, ensuring consistent and accurate readings every time.
【Professional HVAC & DIY Ready】Trusted by HVAC technicians, maintenance professionals, and DIY enthusiasts, the ALD-200 r454b leak detector is ideal for quick leak detection on heat pumps, air conditioners, refrigeration units, and automotive A/C systems. Detects leaks with precision comparable to high-end detectors at a fraction of the cost.
Show More
5
TOPTES RT-389 Rechargeable Refrigerant Leak Detector, HVAC Freon Leak Detector with 3 Sensitivity Modes & 3 Alarm Types for CFCs, HCFCs, HFCs, HFOs, HCs for Car Home Industrial - Orange
TOPTES
Why we love it
Precision detection with adjustable sensitivity.
Flexible alarm modes for convenience.
Durable design for harsh environments.
Main Highlights
Adjustable Sensitivity For Precision Detection: The RT-389 refrigerant leak detector features a advanced Japanese semiconductor sensor with three sensitivity modes(High, Middle, Low), accurately identifying refrigerant leaks down to a maximum sensitivity of 3g/yr (0.1oz/yr). Additionally, Its 36.8cm flexible gooseneck making it ideal for automotive, home, and industrial HVAC systems
Triple Alarm Modes & Quick Mute: Equipped with sound(90dB), visual, and vibration alarms that can be independently activated or deactivated, the RT-389 freon leak detector offers flexible notification options. Its quick mute function allows you to silence alarms directly from the detection screen. The built-in top light enhances visibility in low-light conditions, ensuring precision detection in basements, garages, or other confined spaces
Dual Display Modes: The vibrant TFT color display of RT-389 refrigerant leak detector ensures clear readings with adjustable brightness and an auto screen-off feature, enhancing readability and conserving battery life. Switch between a curved funnel chart for real-time refrigerant concentration levels (PPM) and a curve graph for tracking trends over time, providing a comprehensive detection experience
User-Friendly And High Quality: Powered by a robust 2000mAh rechargeable battery with USB-C charging, the RT-389 freon leak detector offers over 8 hours of continuous use, perfect for long tasks. The ergonomic, easy-grip design ensures comfortable handling. Built with high-strength engineering plastic, the RT-389 is waterproof, explosion-proof, and dustproof, ensuring durability and reliability in harsh environments
Wide Detection Range: The RT-389 halogan freon sniffer Detects refrigerants like HCFs, HCFCs, CFCs, PFCs, HFOs, such as R11, R22, R404a, R410a, R600a, R1234yf, as well as HCs like R50 (Methane), R170 (Ethane), R290 (Propane), and R600a (Isobutane). Package Includes: 1 x RT-389 Freon Leak Detector, 1 x Multilingual User Manual, 1 x Charging Cable, 1 x Storage Case
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9.4
Superb
Check Price
9.4
Superb
TOPTES
TOPTES RT-389 Rechargeable Refrigerant Leak Detector, HVAC Freon Leak Detector with 3 Sensitivity Modes & 3 Alarm Types for CFCs, HCFCs, HFCs, HFOs, HCs for Car Home Industrial - Orange
Check Price
Show More
Why we love it
Precision detection with adjustable sensitivity.
Flexible alarm modes for convenience.
Durable design for harsh environments.
Main Highlights
Adjustable Sensitivity For Precision Detection: The RT-389 refrigerant leak detector features a advanced Japanese semiconductor sensor with three sensitivity modes(High, Middle, Low), accurately identifying refrigerant leaks down to a maximum sensitivity of 3g/yr (0.1oz/yr). Additionally, Its 36.8cm flexible gooseneck making it ideal for automotive, home, and industrial HVAC systems
Triple Alarm Modes & Quick Mute: Equipped with sound(90dB), visual, and vibration alarms that can be independently activated or deactivated, the RT-389 freon leak detector offers flexible notification options. Its quick mute function allows you to silence alarms directly from the detection screen. The built-in top light enhances visibility in low-light conditions, ensuring precision detection in basements, garages, or other confined spaces
Dual Display Modes: The vibrant TFT color display of RT-389 refrigerant leak detector ensures clear readings with adjustable brightness and an auto screen-off feature, enhancing readability and conserving battery life. Switch between a curved funnel chart for real-time refrigerant concentration levels (PPM) and a curve graph for tracking trends over time, providing a comprehensive detection experience
User-Friendly And High Quality: Powered by a robust 2000mAh rechargeable battery with USB-C charging, the RT-389 freon leak detector offers over 8 hours of continuous use, perfect for long tasks. The ergonomic, easy-grip design ensures comfortable handling. Built with high-strength engineering plastic, the RT-389 is waterproof, explosion-proof, and dustproof, ensuring durability and reliability in harsh environments
Wide Detection Range: The RT-389 halogan freon sniffer Detects refrigerants like HCFs, HCFCs, CFCs, PFCs, HFOs, such as R11, R22, R404a, R410a, R600a, R1234yf, as well as HCs like R50 (Methane), R170 (Ethane), R290 (Propane), and R600a (Isobutane). Package Includes: 1 x RT-389 Freon Leak Detector, 1 x Multilingual User Manual, 1 x Charging Cable, 1 x Storage Case
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6
ALD-200 PRO Heat Pump Refrigerant Leak Detector, HVAC Leak Sniffer with Heated Diode Sensor & UV LED, Freon Gas Detector for R410A R32 R454B R290 R600a R22 R1234YF | A2L Low-GWP Compatible
Therm La Mode
Why we love it
High sensitivity detects leaks.
Probe reaches tight spaces.
Clear visual and audible alerts.
Main Highlights
High Sensitivity for New Refrigerants: Detects the latest A2L and low-GWP refrigerants used in modern heat pumps and HVAC systems, including R32, R454B, R410A, R407C, R1234ze, R290, and R600a. Three adjustable sensitivity modes with a maximum sensitivity of 0.14 oz./yr ensure accurate detection of even the smallest refrigerant leaks.
Designed for Heat Pump Engineers: Specially engineered for ASHP (Air Source Heat Pump) installation and service technicians. The 16-inch flexible probe allows you to reach tight or hidden areas inside outdoor units where leaks commonly occur.
Real-Time Visual Detection: The 2.6-inch colour display features a unique bar graph mode that visually indicates gas concentration and changes colour as the probe approaches the leak source. Clear, intuitive visual feedback for both indoor and outdoor service conditions.
Audible & Visual Alarms + Mute Option: Visual and audible alarms increase with the refrigerant concentration, helping identify leaks even in noisy environments. Press the MUTE button to silence the buzzer when working indoors or near customers.
Reset & Peak Functions for Accuracy: The Reset function removes background gas interference, eliminating false positives during continuous leak checks. The Peak function records the highest leak level detected—ideal for tracking multiple leak points in one session.
3 modes of sensitivity with maximum sensitivity up to 0.14oz./yr. 16 inch sensor probes of the hvac leak detector that allows you to reach hard-to-reach areas.
Show More
9.4
Superb
Check Price
9.4
Superb
Therm La Mode
ALD-200 PRO Heat Pump Refrigerant Leak Detector, HVAC Leak Sniffer with Heated Diode Sensor & UV LED, Freon Gas Detector for R410A R32 R454B R290 R600a R22 R1234YF | A2L Low-GWP Compatible
Check Price
Show More
Why we love it
High sensitivity detects leaks.
Probe reaches tight spaces.
Clear visual and audible alerts.
Main Highlights
High Sensitivity for New Refrigerants: Detects the latest A2L and low-GWP refrigerants used in modern heat pumps and HVAC systems, including R32, R454B, R410A, R407C, R1234ze, R290, and R600a. Three adjustable sensitivity modes with a maximum sensitivity of 0.14 oz./yr ensure accurate detection of even the smallest refrigerant leaks.
Designed for Heat Pump Engineers: Specially engineered for ASHP (Air Source Heat Pump) installation and service technicians. The 16-inch flexible probe allows you to reach tight or hidden areas inside outdoor units where leaks commonly occur.
Real-Time Visual Detection: The 2.6-inch colour display features a unique bar graph mode that visually indicates gas concentration and changes colour as the probe approaches the leak source. Clear, intuitive visual feedback for both indoor and outdoor service conditions.
Audible & Visual Alarms + Mute Option: Visual and audible alarms increase with the refrigerant concentration, helping identify leaks even in noisy environments. Press the MUTE button to silence the buzzer when working indoors or near customers.
Reset & Peak Functions for Accuracy: The Reset function removes background gas interference, eliminating false positives during continuous leak checks. The Peak function records the highest leak level detected—ideal for tracking multiple leak points in one session.
3 modes of sensitivity with maximum sensitivity up to 0.14oz./yr. 16 inch sensor probes of the hvac leak detector that allows you to reach hard-to-reach areas.
Show More
7
Refrigerant Leak Detector, SIMBOW ALD-200 PRO Freon Leak Detector, Freon Leak Detector, Freon Sniffer Automotive Halogen Gas Leak Detector for R410A R22 R1234YF R600a R290
Simbow
Why we love it
Highly sensitive leak detection.
Access hard-to-reach areas easily.
Visual and audible alarms alert.
Main Highlights
Three Sensitivity Modes with a maximum sensitivity of up to 0.14 oz./year, ensuring highly efficient detection of refrigerant leaks.
16-Inch Sensor Probes enable access to tight or hard-to-reach areas, making leak detection in HVAC systems more convenient.
Visual and Audible Alarms intensify as the concentration of refrigerant gas increases. Use the MUTE button to easily toggle the buzzer on or off.
2.6' Large Screen features a unique bar graph mode that displays the amount of gas detected and changes color as you approach the leak source.
The peak display function clearly identifies the exact location of the leak, guiding you to the detection point with precision.
Equipped with a built-in 3000mAh rechargeable battery, the freon tester offers up to 6 hours of continuous operation, providing an eco-friendly and efficient solution for leak detection.
Designed with durability and oil resistance, this car AC leak detector is a reliable and user-friendly tool for HVAC engineers.
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9.2
Superb
Check Price
9.2
Superb
Simbow
Refrigerant Leak Detector, SIMBOW ALD-200 PRO Freon Leak Detector, Freon Leak Detector, Freon Sniffer Automotive Halogen Gas Leak Detector for R410A R22 R1234YF R600a R290
Check Price
Show More
Why we love it
Highly sensitive leak detection.
Access hard-to-reach areas easily.
Visual and audible alarms alert.
Main Highlights
Three Sensitivity Modes with a maximum sensitivity of up to 0.14 oz./year, ensuring highly efficient detection of refrigerant leaks.
16-Inch Sensor Probes enable access to tight or hard-to-reach areas, making leak detection in HVAC systems more convenient.
Visual and Audible Alarms intensify as the concentration of refrigerant gas increases. Use the MUTE button to easily toggle the buzzer on or off.
2.6' Large Screen features a unique bar graph mode that displays the amount of gas detected and changes color as you approach the leak source.
The peak display function clearly identifies the exact location of the leak, guiding you to the detection point with precision.
Equipped with a built-in 3000mAh rechargeable battery, the freon tester offers up to 6 hours of continuous operation, providing an eco-friendly and efficient solution for leak detection.
Designed with durability and oil resistance, this car AC leak detector is a reliable and user-friendly tool for HVAC engineers.
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8
Wale&Morn Refrigerant Leak Detector LD200,Freon Leak Detector with Rechargeable Battery,Refrigerant Gas Leak Detector for HVAC R22 R410A R134A R290 R600A R1234yf CFCs HCFCs HFCs HC HFO
Wale&Morn
Why we love it
Accurate, low-interference sensing.
Auto calibration included.
Battery lasts eight hours.
Main Highlights
【Advanced and upgraded】: The refrigerant leak detector has high-precision heated diode sensor with less interference from other gases (compared to corona sensor) has over 500hours life and max sensitivity 0.05oz/yr(Normal sensitivity is 0.1oz/yr). It can quickly identify all halogenated refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs SF6 and mixed refrigerants such as R11/R22/R404a/R410a/R600a/R1234yf.It has EN14624 Certificate and meet SAE J2791 ,SAE J2913.
【Easy to Operate】: The refrigerant leak detector with five-key design and it allows to fast reset, mute, power on/off, adjust sensitivity, mark the peak value of leakage and makes LCD screen visually display the leakage level and device status in one simple click.
【Fashionable】: Latest TYPE-C charging port and 2.8 inch color display. Battery life: The built-in 3000mAh rechargeable battery provides continuous 8 hours working time.
【Auto & Mannual Calibration】: The refrigerant leak detector has auto calibration.It can adjust to the new detected place and find new concentration.
【Buy with Confidence】: We provide you with 100% satisfaction guarantee. If there is any problem with your refrigerant leakage detector, please contact us, and we will provide you with return, exchange and repair.
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9.0
Superb
Check Price
9.0
Superb
Wale&Morn
Wale&Morn Refrigerant Leak Detector LD200,Freon Leak Detector with Rechargeable Battery,Refrigerant Gas Leak Detector for HVAC R22 R410A R134A R290 R600A R1234yf CFCs HCFCs HFCs HC HFO
Check Price
Show More
Why we love it
Accurate, low-interference sensing.
Auto calibration included.
Battery lasts eight hours.
Main Highlights
【Advanced and upgraded】: The refrigerant leak detector has high-precision heated diode sensor with less interference from other gases (compared to corona sensor) has over 500hours life and max sensitivity 0.05oz/yr(Normal sensitivity is 0.1oz/yr). It can quickly identify all halogenated refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs SF6 and mixed refrigerants such as R11/R22/R404a/R410a/R600a/R1234yf.It has EN14624 Certificate and meet SAE J2791 ,SAE J2913.
【Easy to Operate】: The refrigerant leak detector with five-key design and it allows to fast reset, mute, power on/off, adjust sensitivity, mark the peak value of leakage and makes LCD screen visually display the leakage level and device status in one simple click.
【Fashionable】: Latest TYPE-C charging port and 2.8 inch color display. Battery life: The built-in 3000mAh rechargeable battery provides continuous 8 hours working time.
【Auto & Mannual Calibration】: The refrigerant leak detector has auto calibration.It can adjust to the new detected place and find new concentration.
【Buy with Confidence】: We provide you with 100% satisfaction guarantee. If there is any problem with your refrigerant leakage detector, please contact us, and we will provide you with return, exchange and repair.
Show More
9
Refrigerant Leak Detector, Aprvtio ALD-200 3-in-1 Freon Leak Detector Tester A1 A2L A3 Refrigerants Compatible, Rechargeable, Multipule Alarm, Heated Diode Sensor for HVAC R32 R454B R410A R134A R290
Aprvtio
Why we love it
High sensitivity detects freon precisely.
Audible and visual alerts.
Durable and oil resistant.
Main Highlights
【Aprvtio Upgraded Sensor & 3-in-1 Detection】 Equipped with the aprvtio next-generation heat diode sensor, this ac leak detector goes beyond traditional units to accurately locate leaks in A1 (R410A), A2L (R32, R454B), A3 (R290, R600) refrigerants and other gases such as H2/N2 tracer gas—covering all types with true 3-in-1 detection capability.
【High Sensitivity & Micro Leak Detection】 With sensitivity adjustable up to 0.14 oz./yr., leak detector hvac quickly pinpoints even the smallest micro leaks that soap bubbles or dye tests often miss, saving hours of troubleshooting.
【Audible & Visual Alarms with Mute】 As a reliable hvac leak detector, the refrigerant leak detector hvac provides a clear 2.8-inch TFT color display showing concentration levels, while the beep frequency increases as the leak intensifies. The mute button allows quiet operation when needed.
【2.8-inch TFT Color Display】The detector de fugas de refrigerante is equipped with an advanced color graphic display, this R134a leak detector ensures optimal visibility and readability in both low-light conditions such as basements and brightly lit outdoor environments.
【Smart Functional Capabilities】Intelligent features including Peak Mode (captures the maximum leakage reading) and Reset Function (minimizes false alarms by recalibrating the sensor) make this R290 leak detector a user-friendly and reliable tool for HVAC professionals.
【Durable, Oil-Resistant & Field-Ready】 The freon sniffer is built with an oil-resistant and impact-resistant housing, this freon sniffer withstands harsh job site conditions. The rechargeable battery supports a full day of service, making it ready whenever you are.
【Easy Setup & Accurate Calibration】Designed for ease of use: fully charge before first use, warm up the sensor, and perform auto-zero calibration in clean air. The Peak Mode and Reset Function of the hvac tools help reduce false alarms, ensuring consistent and accurate readings every time.
【Professional HVAC & DIY Ready】Trusted by HVAC technicians, maintenance professionals, and DIY enthusiasts, the ALD-200 r454b leak detector is ideal for quick leak detection on heat pumps, air conditioners, refrigeration units, and automotive A/C systems. Detects leaks with precision comparable to high-end detectors at a fraction of the cost.
【Wide Refrigerant Compatibility – A1, A2L, A3】This ac leak detector covers a full spectrum of gases including: [CFCs: R11, R12, R13, R113, R114, R115, R500, R502, R503] [HCFCs: R22, R123, R124, R141b, R142b, R401A, R401B, R402A, R402B, R408A, R409A] [HFCs: R32, R125, R134a, R143a, R152a, R404A, R407C, R410A, R410B, R417A, R422D, R427A, R438A, R448A, R449A, R452B, R453A, R507] [HFOs: R1234yf, R1234ze(E), R1233zd(E), R1336mzz(Z), R514A, R1224yd(Z), R1243zf] [Blends: R401A, R404A, R407C, R410A, R507, AZ-50 (R507), HP62 (R404A), MP39 (R401A), NU-22 (R422D)] [PFC: PFC-14, PFC-116, PFC-218, etc] [HCs(Hydrocarbon): R50, R290, R600a etc.][5%hydrogen/95% nitrogen Racer Gas]
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8.9
Excellent
Check Price
8.9
Excellent
Aprvtio
Refrigerant Leak Detector, Aprvtio ALD-200 3-in-1 Freon Leak Detector Tester A1 A2L A3 Refrigerants Compatible, Rechargeable, Multipule Alarm, Heated Diode Sensor for HVAC R32 R454B R410A R134A R290
Check Price
Show More
Why we love it
High sensitivity detects freon precisely.
Audible and visual alerts.
Durable and oil resistant.
Main Highlights
【Aprvtio Upgraded Sensor & 3-in-1 Detection】 Equipped with the aprvtio next-generation heat diode sensor, this ac leak detector goes beyond traditional units to accurately locate leaks in A1 (R410A), A2L (R32, R454B), A3 (R290, R600) refrigerants and other gases such as H2/N2 tracer gas—covering all types with true 3-in-1 detection capability.
【High Sensitivity & Micro Leak Detection】 With sensitivity adjustable up to 0.14 oz./yr., leak detector hvac quickly pinpoints even the smallest micro leaks that soap bubbles or dye tests often miss, saving hours of troubleshooting.
【Audible & Visual Alarms with Mute】 As a reliable hvac leak detector, the refrigerant leak detector hvac provides a clear 2.8-inch TFT color display showing concentration levels, while the beep frequency increases as the leak intensifies. The mute button allows quiet operation when needed.
【2.8-inch TFT Color Display】The detector de fugas de refrigerante is equipped with an advanced color graphic display, this R134a leak detector ensures optimal visibility and readability in both low-light conditions such as basements and brightly lit outdoor environments.
【Smart Functional Capabilities】Intelligent features including Peak Mode (captures the maximum leakage reading) and Reset Function (minimizes false alarms by recalibrating the sensor) make this R290 leak detector a user-friendly and reliable tool for HVAC professionals.
【Durable, Oil-Resistant & Field-Ready】 The freon sniffer is built with an oil-resistant and impact-resistant housing, this freon sniffer withstands harsh job site conditions. The rechargeable battery supports a full day of service, making it ready whenever you are.
【Easy Setup & Accurate Calibration】Designed for ease of use: fully charge before first use, warm up the sensor, and perform auto-zero calibration in clean air. The Peak Mode and Reset Function of the hvac tools help reduce false alarms, ensuring consistent and accurate readings every time.
【Professional HVAC & DIY Ready】Trusted by HVAC technicians, maintenance professionals, and DIY enthusiasts, the ALD-200 r454b leak detector is ideal for quick leak detection on heat pumps, air conditioners, refrigeration units, and automotive A/C systems. Detects leaks with precision comparable to high-end detectors at a fraction of the cost.
【Wide Refrigerant Compatibility – A1, A2L, A3】This ac leak detector covers a full spectrum of gases including: [CFCs: R11, R12, R13, R113, R114, R115, R500, R502, R503] [HCFCs: R22, R123, R124, R141b, R142b, R401A, R401B, R402A, R402B, R408A, R409A] [HFCs: R32, R125, R134a, R143a, R152a, R404A, R407C, R410A, R410B, R417A, R422D, R427A, R438A, R448A, R449A, R452B, R453A, R507] [HFOs: R1234yf, R1234ze(E), R1233zd(E), R1336mzz(Z), R514A, R1224yd(Z), R1243zf] [Blends: R401A, R404A, R407C, R410A, R507, AZ-50 (R507), HP62 (R404A), MP39 (R401A), NU-22 (R422D)] [PFC: PFC-14, PFC-116, PFC-218, etc] [HCs(Hydrocarbon): R50, R290, R600a etc.][5%hydrogen/95% nitrogen Racer Gas]
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10
Leak Saver Refrigerant R290 - Upright Liquid Charging Self-Sealing Can - 8 oz, 12 Pack - for Systems Designed for R290 - Made in The USA
Leak Saver
Main Highlights
Suitable for Systems Specifically Calling for R290: It can be used as a refrigerant substitute in retail food refrigerators and freezers (stand-alone units only). This product is NOT intended for use in systems not designed for R290.
Convenient Upright Liquid Charging Can: Our innovative design allows you to charge your system in liquid with the can standing upright. You can now conveniently stand the can upright on the refrigerant scale while weighing in the liquid charge.
Self-Sealing K28 ICOR Style Top (Can Tap Not Included): Our R290 refrigerant cans use a K-28 (ICOR style) self-sealing top valve. The K28 7/16” female to ¼” male can tap valve is not included.
Proudly Made in the USA: Our high quality refrigerant R290 is made in the USA.
The Product We Trust: Our company is owned and operated by HVAC technicians. These are the same products we use in our own jobs, and stand behind them 100%
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8.9
Excellent
Check Price
8.9
Excellent
Leak Saver
Leak Saver Refrigerant R290 - Upright Liquid Charging Self-Sealing Can - 8 oz, 12 Pack - for Systems Designed for R290 - Made in The USA
Check Price
Show More
Main Highlights
Suitable for Systems Specifically Calling for R290: It can be used as a refrigerant substitute in retail food refrigerators and freezers (stand-alone units only). This product is NOT intended for use in systems not designed for R290.
Convenient Upright Liquid Charging Can: Our innovative design allows you to charge your system in liquid with the can standing upright. You can now conveniently stand the can upright on the refrigerant scale while weighing in the liquid charge.
Self-Sealing K28 ICOR Style Top (Can Tap Not Included): Our R290 refrigerant cans use a K-28 (ICOR style) self-sealing top valve. The K28 7/16” female to ¼” male can tap valve is not included.
Proudly Made in the USA: Our high quality refrigerant R290 is made in the USA.
The Product We Trust: Our company is owned and operated by HVAC technicians. These are the same products we use in our own jobs, and stand behind them 100%
Show More
