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Best Apollo Oil Tank Level Monitor of 2026
Last updated on 01/01/2026
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1
Apollo Smart Heating Oil Tank Level Gauge
Heating Parts Warehouse
Why we love it
Calculates heating costs efficiently.
Measures CO2 emissions accurately.
Monitors fuel consumption effectively.
Main Highlights
Heating Costs in £s or €s
CO2 Emissions in kgCO2
Fuel consumption in litres
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9.7
Exceptional
Check Price
9.7
Exceptional
Heating Parts Warehouse
Apollo Smart Heating Oil Tank Level Gauge
Check Price
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Why we love it
Calculates heating costs efficiently.
Measures CO2 emissions accurately.
Monitors fuel consumption effectively.
Main Highlights
Heating Costs in £s or €s
CO2 Emissions in kgCO2
Fuel consumption in litres
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Value for Money
2
Watchman SENSit Smart Oil Tank Monitor/Gauge with Plug
Kingspan
Why we love it
Easy and quick installation.
Monitored via mobile app.
Works efficiently with Alexa.
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9.5
Superb
Check Price
9.5
Superb
Kingspan
Watchman SENSit Smart Oil Tank Monitor/Gauge with Plug
Check Price
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Why we love it
Easy and quick installation.
Monitored via mobile app.
Works efficiently with Alexa.
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3
Magnus HAWKi Smart Oil Tank Level Monitor Radar Gauge - Bluetooth Connection to Phone App, Universal Fit - No Drilling Required - Plastic Oil Tank Level Gauge.
PlumbEZ
11% Off
Why we love it
Smartphone connectivity enhances user experience.
Award-winning design ensures accurate measurements.
Easy installation protects tank integrity.
Main Highlights
Smartphone Compatibility: Bluetooth (BLE) connectivity provides a rich user experience from your oil level monitor to your smartphone via the Magnus App when in range (up to 100m). Complete with In-app step by step instructions and technical support. No prior knowledge needed and a fast set up time.
Award Winning Design: The Magnus Smart Oil Tank Monitor Radar Gauge, recognized for its excellence, offers a seamless solution to monitor your oil tank gauge with precision. The heating oil monitor provides highly accurate measurements within ±5mm.
No Drilling Needed: Simple installation with 3M double-sided tape or using the steel oil tank adaptor, preserving the tank’s integrity. This heating oil tank level gauge provides a hassle-free setup, allowing you to effortlessly track your oil levels with its advanced depth gauge technology.
Weather Resistant: Reliable performance in all weather conditions, as radar is unaffected by environmental factors. Whilst also being compact and discreet, the small profile allows installation in tight spaces, including bunded tanks.
Comprehensive Sensor Capability: The Magnus oil tank gauge for home oil tanks is a tank level sensor. This advanced oil monitoring device ensures precise measurements and provides peace of mind with its smart oil monitor features.
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9.5
Superb
Check Price
9.5
Superb
PlumbEZ
Magnus HAWKi Smart Oil Tank Level Monitor Radar Gauge - Bluetooth Connection to Phone App, Universal Fit - No Drilling Required - Plastic Oil Tank Level Gauge.
11% Off
Check Price
Show More
Why we love it
Smartphone connectivity enhances user experience.
Award-winning design ensures accurate measurements.
Easy installation protects tank integrity.
Main Highlights
Smartphone Compatibility: Bluetooth (BLE) connectivity provides a rich user experience from your oil level monitor to your smartphone via the Magnus App when in range (up to 100m). Complete with In-app step by step instructions and technical support. No prior knowledge needed and a fast set up time.
Award Winning Design: The Magnus Smart Oil Tank Monitor Radar Gauge, recognized for its excellence, offers a seamless solution to monitor your oil tank gauge with precision. The heating oil monitor provides highly accurate measurements within ±5mm.
No Drilling Needed: Simple installation with 3M double-sided tape or using the steel oil tank adaptor, preserving the tank’s integrity. This heating oil tank level gauge provides a hassle-free setup, allowing you to effortlessly track your oil levels with its advanced depth gauge technology.
Weather Resistant: Reliable performance in all weather conditions, as radar is unaffected by environmental factors. Whilst also being compact and discreet, the small profile allows installation in tight spaces, including bunded tanks.
Comprehensive Sensor Capability: The Magnus oil tank gauge for home oil tanks is a tank level sensor. This advanced oil monitoring device ensures precise measurements and provides peace of mind with its smart oil monitor features.
Show More
4
Magnus HAWKi Smart Steel Oil Tank Level Monitor Radar Gauge - Bluetooth Connection to Phone App, Universal Fit - No Drilling Required - Fuel Level Gauge for Steel Oil Tanks
PlumbEZ
11% Off
Why we love it
Smartphone compatibility enhances user experience.
Award-winning design ensures precise measurements.
Weather resistant for reliable monitoring.
Main Highlights
Smartphone Compatibility: Bluetooth (BLE) connectivity provides a rich user experience from your oil level monitor to your smartphone via the Magnus App when in range (up to 100m). Complete with In-app step by step instructions and technical support. No prior knowledge needed and a fast set up time.
Award Winning Design: The Magnus Smart Oil Tank Monitor Radar Gauge, recognized for its excellence, offers a seamless solution to monitor your oil tank gauge with precision. The heating oil monitor provides highly accurate measurements within ±5mm.
Steel Tank Installation – Designed for metal tanks, supplied with a universal adaptor that simply screws into any 2" or 1.5" vent or fill point. No adhesives or drilling required.
Weather Resistant & Reliable – Radar measurement is unaffected by condensation, temperature, or tank shape. Compact design allows installation even in bunded or confined tanks.
Versatile Monitoring – Primarily for heating oil tanks, but can also be used with diesel, kerosene, and even water tanks, making it a flexible multi-liquid smart gauge.
Show More
9.5
Superb
Check Price
9.5
Superb
PlumbEZ
Magnus HAWKi Smart Steel Oil Tank Level Monitor Radar Gauge - Bluetooth Connection to Phone App, Universal Fit - No Drilling Required - Fuel Level Gauge for Steel Oil Tanks
11% Off
Check Price
Show More
Why we love it
Smartphone compatibility enhances user experience.
Award-winning design ensures precise measurements.
Weather resistant for reliable monitoring.
Main Highlights
Smartphone Compatibility: Bluetooth (BLE) connectivity provides a rich user experience from your oil level monitor to your smartphone via the Magnus App when in range (up to 100m). Complete with In-app step by step instructions and technical support. No prior knowledge needed and a fast set up time.
Award Winning Design: The Magnus Smart Oil Tank Monitor Radar Gauge, recognized for its excellence, offers a seamless solution to monitor your oil tank gauge with precision. The heating oil monitor provides highly accurate measurements within ±5mm.
Steel Tank Installation – Designed for metal tanks, supplied with a universal adaptor that simply screws into any 2" or 1.5" vent or fill point. No adhesives or drilling required.
Weather Resistant & Reliable – Radar measurement is unaffected by condensation, temperature, or tank shape. Compact design allows installation even in bunded or confined tanks.
Versatile Monitoring – Primarily for heating oil tanks, but can also be used with diesel, kerosene, and even water tanks, making it a flexible multi-liquid smart gauge.
Show More
5
Smart Oil Gauge - Wi-Fi Heating Oil Tank Gauge with Smart Monitoring - Fuel Tank Gauge Compatible with Alexa - Designed for 275/330/500/550 Gallon Tanks (Vertical/Horizontal)
Connected Consumer Fuel
Why we love it
Effortless remote monitoring convenience.
Precision dual sensor technology.
Receive low-level alerts timely.
Main Highlights
EFFORTLESS REMOTE MONITORING: Keep track of your heating oil tank gauge with a Smart Oil Gauge through your smartphone, whether you're at work, on vacation, or anywhere else with an internet connection. No more unnecessary trips to the basement to check your fuel tank gauge. Enjoy the convenience of checking your oil tank's level on the go.
STAY AHEAD WITH LOW-LEVEL ALERTS: Smart Oil Gauge, the leading wifi fuel oil tank gauge, ensures you're always informed. Receive timely text and email alerts with the Smart Oil Gauge when your tank hits critical levels. Be notified when the oil level sensor is at ½, 1/3, 1/4, and 1/8 oil tank capacities. Eliminate those midnight oil runout worries!
OPTIMIZE ENERGY CONSUMPTION: Observe your oil tank usage by the hour, empowering you to make informed decisions. Monitor daily consumption patterns from your phone, adjust your thermostat for optimal fuel consumption, and reduce heating costs with Smart Oil Gauge's insights.
UNPARALLELED COMPATIBILITY: Our oil tank gauge fits standard steel tanks - 138, 220, 240, 275, 330 vertical or horizontal, single or side-by-side, as well as 500 and 550 gallon cylindrical tanks. Fuel tank gauge adapters are available for Roth 400L, 620L, 1000L, and 1000LH, as well as tanks with 1.25" and 1.5" openings. The 2" NPT design fits new steel tanks and can work alongside a float gauge and vial assembly too. ABOVE GROUND TANKS ONLY.
CRAFTED IN THE USA: Smart Oil Gauge is designed and assembled in our dedicated production facility in Danbury, CT. Monitor your fuel oil tank in real-time, track fuel consumption, and enjoy easy installation with our video tutorials and world-class customer support.
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9.4
Superb
Check Price
9.4
Superb
Connected Consumer Fuel
Smart Oil Gauge - Wi-Fi Heating Oil Tank Gauge with Smart Monitoring - Fuel Tank Gauge Compatible with Alexa - Designed for 275/330/500/550 Gallon Tanks (Vertical/Horizontal)
Check Price
Show More
Why we love it
Effortless remote monitoring convenience.
Precision dual sensor technology.
Receive low-level alerts timely.
Main Highlights
EFFORTLESS REMOTE MONITORING: Keep track of your heating oil tank gauge with a Smart Oil Gauge through your smartphone, whether you're at work, on vacation, or anywhere else with an internet connection. No more unnecessary trips to the basement to check your fuel tank gauge. Enjoy the convenience of checking your oil tank's level on the go.
STAY AHEAD WITH LOW-LEVEL ALERTS: Smart Oil Gauge, the leading wifi fuel oil tank gauge, ensures you're always informed. Receive timely text and email alerts with the Smart Oil Gauge when your tank hits critical levels. Be notified when the oil level sensor is at ½, 1/3, 1/4, and 1/8 oil tank capacities. Eliminate those midnight oil runout worries!
OPTIMIZE ENERGY CONSUMPTION: Observe your oil tank usage by the hour, empowering you to make informed decisions. Monitor daily consumption patterns from your phone, adjust your thermostat for optimal fuel consumption, and reduce heating costs with Smart Oil Gauge's insights.
UNPARALLELED COMPATIBILITY: Our oil tank gauge fits standard steel tanks - 138, 220, 240, 275, 330 vertical or horizontal, single or side-by-side, as well as 500 and 550 gallon cylindrical tanks. Fuel tank gauge adapters are available for Roth 400L, 620L, 1000L, and 1000LH, as well as tanks with 1.25" and 1.5" openings. The 2" NPT design fits new steel tanks and can work alongside a float gauge and vial assembly too. ABOVE GROUND TANKS ONLY.
CRAFTED IN THE USA: Smart Oil Gauge is designed and assembled in our dedicated production facility in Danbury, CT. Monitor your fuel oil tank in real-time, track fuel consumption, and enjoy easy installation with our video tutorials and world-class customer support.
Show More
6
Apollo Ultrasonic Level Sensor Standard Operating Voltage (Range): 150-250 V/AC 1S
Dunraven Systems
Why we love it
Suitable for varied voltage ranges.
Includes one Apollo sensor.
Promises ultrasonic level sensing.
Main Highlights
Apollo Ultrasonic Level sensor standard operating voltage (range): 150 - 250 V/AC 1S
Contents: 1 item
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9.3
Superb
Check Price
9.3
Superb
Dunraven Systems
Apollo Ultrasonic Level Sensor Standard Operating Voltage (Range): 150-250 V/AC 1S
Check Price
Show More
Why we love it
Suitable for varied voltage ranges.
Includes one Apollo sensor.
Promises ultrasonic level sensing.
Main Highlights
Apollo Ultrasonic Level sensor standard operating voltage (range): 150 - 250 V/AC 1S
Contents: 1 item
Show More
7
Watchman Sonic Oil Level Monitor
Watchman
Why we love it
Saves outdoor trips.
Monitors oil levels.
Complements home convenience.
Main Highlights
With the Watchman Sonic Oil Tank Gauge you can monitor your oil tank contents 'at a glance' from your home, no need to walk outside to the tank.
Show More
9.3
Superb
Check Price
9.3
Superb
Watchman
Watchman Sonic Oil Level Monitor
Check Price
Show More
Why we love it
Saves outdoor trips.
Monitors oil levels.
Complements home convenience.
Main Highlights
With the Watchman Sonic Oil Tank Gauge you can monitor your oil tank contents 'at a glance' from your home, no need to walk outside to the tank.
Show More
8
Watchman Sonic Advanced Oil Tank Level Gauge, with Audible Alarm - Oil Tank Level Monitor and Tank Level Sensor
Watchman
Why we love it
Fits all with ease.
Installation is a breeze.
Impressive receiver gauge range.
Main Highlights
ONE MODEL FITS ALL - no need for different device for different kinds or materials. This device can be fitted at any kind of oil tanks!
ALARM ALERT - No need to worry on the loss of your oil tank. The alarm will just blare when there's a sudden drop in level!
200 METER TRANSMITTER TO RECEIVER GAUGE - Yes, it can alert you from that far. You don't want to caught off-guard when that oil level suddenly starts on dropping!
QUICK AND EASY INSTALLATION - With easy to follow instructions, you'll never get a complicated time on getting them up and running!
12 MONTHS REPLACEMENT GUARANTEE - If things go wrong within 12 months, just let us know, and we will replace it for you!
Show More
9.3
Superb
Check Price
9.3
Superb
Watchman
Watchman Sonic Advanced Oil Tank Level Gauge, with Audible Alarm - Oil Tank Level Monitor and Tank Level Sensor
Check Price
Show More
Why we love it
Fits all with ease.
Installation is a breeze.
Impressive receiver gauge range.
Main Highlights
ONE MODEL FITS ALL - no need for different device for different kinds or materials. This device can be fitted at any kind of oil tanks!
ALARM ALERT - No need to worry on the loss of your oil tank. The alarm will just blare when there's a sudden drop in level!
200 METER TRANSMITTER TO RECEIVER GAUGE - Yes, it can alert you from that far. You don't want to caught off-guard when that oil level suddenly starts on dropping!
QUICK AND EASY INSTALLATION - With easy to follow instructions, you'll never get a complicated time on getting them up and running!
12 MONTHS REPLACEMENT GUARANTEE - If things go wrong within 12 months, just let us know, and we will replace it for you!
Show More
9
Kingspan Watchman Sonic Advanced Oil Level Monitor
Kingspan
Why we love it
Advanced Ultrasonic Technology for precision.
Ease of Installation on tanks.
Audible alarm for low levels.
Main Highlights
Watchman Gauge
Ultrasonic Technology: This advanced model of Watchman Sonic Oil Level Monitor uses apollo ultrasonic oil tank level monitor technology for accurate and precise measurements. It is a perfect hardware wallet for all your oil monitoring needs.
Easy Installation and Wide Range: This Watchman device is easy to install on both plastic and steel oil tanks, offering a wide measuring range of up to 3 metres and a signal range of 200 metres.
Versatile Heating Oil Monitor: Suitable for use as a heating oil monitor, the device can also function as an oil tank level gauge monitor, replacing the need for a traditional measuring stick for oil tank.
Sonic Tool with Audible Alarm: Our oil watchman employs sonic tool technology to accurately measure oil tank levels. The device is also equipped with an audible alarm to alert you when levels are low.
Watchman Helpline - 02838364415
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9.2
Superb
Check Price
9.2
Superb
Kingspan
Kingspan Watchman Sonic Advanced Oil Level Monitor
Check Price
Show More
Why we love it
Advanced Ultrasonic Technology for precision.
Ease of Installation on tanks.
Audible alarm for low levels.
Main Highlights
Watchman Gauge
Ultrasonic Technology: This advanced model of Watchman Sonic Oil Level Monitor uses apollo ultrasonic oil tank level monitor technology for accurate and precise measurements. It is a perfect hardware wallet for all your oil monitoring needs.
Easy Installation and Wide Range: This Watchman device is easy to install on both plastic and steel oil tanks, offering a wide measuring range of up to 3 metres and a signal range of 200 metres.
Versatile Heating Oil Monitor: Suitable for use as a heating oil monitor, the device can also function as an oil tank level gauge monitor, replacing the need for a traditional measuring stick for oil tank.
Sonic Tool with Audible Alarm: Our oil watchman employs sonic tool technology to accurately measure oil tank levels. The device is also equipped with an audible alarm to alert you when levels are low.
Watchman Helpline - 02838364415
Show More
10
Oil Tank Level Gauge,Oil Tank Level Monitor,Sleek Design Solar Charging Water Level Monitor For Easy Reading Of Levels
Yhenlovtt
Why we love it
Backlight is user-friendly and convenient.
Time format adaptability is helpful.
Low battery reminder ensures reliability.
Main Highlights
【Backlight On/Off Function】The water level monitor features a convenient backlight function that can be easily turned on or off as needed.
【Time Function 12H/24H】The monitor has a time function that allows you to switch between 12-hour and 24-hour formats, with the default display showing 0:00 in 24 hours.
【Transmitter Low Battery Reminder】You will receive a low battery reminder for the transmitter, that you can replace the batteries in a timely manner.
【Alarm Function】The monitor is equipped with an alarm function, with a default display of 0:00 when powered on, providing timely reminders when necessary.
【Buzzer On/Off】The buzzer function can be turned on or off for key sounds, without affecting the alarm mode.
Show More
9.1
Superb
Check Price
9.1
Superb
Yhenlovtt
Oil Tank Level Gauge,Oil Tank Level Monitor,Sleek Design Solar Charging Water Level Monitor For Easy Reading Of Levels
Check Price
Show More
Why we love it
Backlight is user-friendly and convenient.
Time format adaptability is helpful.
Low battery reminder ensures reliability.
Main Highlights
【Backlight On/Off Function】The water level monitor features a convenient backlight function that can be easily turned on or off as needed.
【Time Function 12H/24H】The monitor has a time function that allows you to switch between 12-hour and 24-hour formats, with the default display showing 0:00 in 24 hours.
【Transmitter Low Battery Reminder】You will receive a low battery reminder for the transmitter, that you can replace the batteries in a timely manner.
【Alarm Function】The monitor is equipped with an alarm function, with a default display of 0:00 when powered on, providing timely reminders when necessary.
【Buzzer On/Off】The buzzer function can be turned on or off for key sounds, without affecting the alarm mode.
Show More
