10 Best Digital Basal Thermometer in The UK

Last updated on 16/07/2025

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Digital Basal Body Temperature Thermometer Dual Modes: Easy@Home Fertility Thermometer with Backlight LCD Display, Premom APP | Ovulation Tracking & Charting | 1/100th Degree High Precision

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Why We Love It

Fast and highly accurate readings.
Advanced features with mobile app.
Comfortable and user-friendly design.

Main Highlights

BBT OR INSTANT READ MODES: The body temperature thermometer has 2 modes. In instant read mode, the oral body temperature can be measured in about 8-12 seconds. The bbt thermometer mode is designed for ovulation tracking and fertility prediction. It only takes about 60-120 seconds to get accurate result.
CLINICAL HIGH ACCURACY: The fertility thermometer provides temperature readings to 1/100th of a degree (2 decimal places). This oral thermometer is sensitive enough to measure subtle changes in body temperature with high accuracy of ±0.05℃(±0.09℉), and you can choose between Fahrenheit and Celsius.
SMART THERMOMETER WITH APP: By entering your basal body temperature manually, Premom app can automatically chart your reading inputs and draw your BBT shift digitally. You can track and view your ovulation cycle and fertility windows prediction at any time.
EASY TO READ: The digital thermometer has large LCD screen with backlit for reading in the dark easily. This bbt thermometer provides unlimited record stored on cloud with your account and 30 records recallable with device.
GENTLE TONE SOUND: Tone sounds when final temperature is reached & fever alarm.The basal body thermometer for ovulation tracking has a gentle confirmation beep, when testing is complete. No timer needed. No need to worry about waking up your sleeping partner beside you either.

Digital Basal Thermometer for Ovulation with Backlight LCD Display, Premom APP(NOT Bluetooth), 1/100th Degree High Precision and Memory Recall, Ovulation Tracking, Charting & Natural Family Planning

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Why We Love It

Monitors ovulation through Premom app.
High clinical accuracy for precision.
Convenient large backlit blue screen.

Main Highlights

【MONITOR YOUR OVULATION CYCLE with Premom】: Use Premom App to track your BBT charting, Cover line and Ovulation test result for your natural family planning journey. Note: users MUST manually enter temperature in Premom app with this non-Bluetooth enabled model. BBT charting and coverline will be drawn automatically for your convenience. Please check Easy@Home Bluetooth enabled smart basal thermometer BT-A31 at https://www.amazon.co.uk/dp/B0764LHSNM
【CLINICAL HIGH ACCURACY (± 0.05 ℃ / ± 0.09 ℉)】: Measures Basal Body Temperature (BBT) to 1/100th of a degree precision (e.g. 36.34℃) in Celsius or Fahrenheit. The measurement takes about 90 seconds, longer than regular oral thermometer as it reads more precision, Recommended by the clinic.
【LARGE BLUE SCREEN WITH BACKLIT】: Easy to read in the dark. Recall 30 temperature records in memory.
【WATERPROOF AND FLEXIBLE TIP】: Waterproof and Flexible thermometer tip for easy to use and clean.
【SOFT BEEPING ALARM】: Signals the completion of the test. No need to count timer.

Forehead Thermometer for Adults Kids, No-Touch Infrared LCD Display Digital Baby Thermometers Body Temperature Thermometer

20% OffFree Shipping

Why We Love It

No-contact, safe, and reliable usage.
Fast, accurate and data tracking.
Multi-use with fever alarm feature.

Main Highlights

No Touch & User-Friendly: Clinically validated and medically certified, our forehead thermometer prioritizes safety and accuracy. Compact yet easy to use, it delivers precise body temperature readings for your family's well-being.
Fast & Precise: Equipped with precise sensor probes and an optimized algorithm, this infrared thermometer provides results within 1 second. Store up to 10 temperature readings for easy tracking of historical data.
3-in-1 Infrared Thermometer: Utilizing infrared technology, it measures forehead temperature and can also gauge the temperature of objects (like milk) and rooms.
Fever Alert with Backlight: Featuring a large LCD screen with 3 backlight indicators (green/yellow/red), the thermometer emits a warning sound for abnormal temperatures (red screen).
What's Included: 1 Touchless Infrared Thermometer, 1 User Manual, 2 LR03 Batteries. Enjoy 12 months of replacement from the purchase date and 24/7 friendly customer service.

Geratherm Basal Digital, Digital cycle thermometer for determination of the time of ovulation. by Geratherm

Main Highlights

digital cycle thermometer for determination of the time of ovulation.

Beurer OT 20 Basal thermometer, for monitoring ovulation cycles and natural pregnancy planning

7% OffFree Shipping

Why We Love It

Highly accurate for family planning.
Pairs conveniently with Ovy app.
Waterproof for easy sanitization.

Main Highlights

Basal digital thermometer with flexible tip to control your cycle for natural family planning
Measuring accuracy +/- 0.05 C and 2-digit display allow accurate determination and calculation of fruit days and ice cuts
The measurement results can be simply inserted together with other body signals into the ovy app, so that you can plan your pregnancy optimally.
The thermometer is waterproof and can be disinfected and is suitable for vaginal or oral temperature measurement.
When the ringtone is measured, the value is displayed on the extra large screen. We recommend a measurement time of 3 minutes after nfp (natural family planning)

Braun Age Precision Digital thermometer - Digital Stick for Multi-Site Usage - Orally, Rectally or Underarm - Baby and Infant Friendly - #1 Brand among doctors(1) - PRT2000

41% OffFree Shipping

Why We Love It

Trusted Accuracy with Age Precision.
Quick, precise age-based results.
Comfortable, versatile usage options.

Main Highlights

#1 Brand among doctors(1): Clinically validated, Braun Age Precision Digital thermometer provides a quick and accurate measurement so you can manage your health at home, with confidence
AGE PRECISION TECHNOLOGY: The definition of fever changes with age(2) as a child grows from newborn to toddler; Our proprietary algorithm helps you understand the results by adjusting colour-coding based on your child's age—green indicates no fever, yellow indicates when a fever is present, and red indicates a high fever
MULTI-SITE USAGE: 3-in-1 thermometer suitable for oral, rectal, or underarm use
QUICK AND EASY TO USE: Braun Age Precision Digital thermometer provides a temperature measurement as fast as 8 seconds; Simple, button operation comes ready to use with a battery included and a storage cap
FLEXIBLE TIP: Features a small, soft, flexible tip that’s extra gentle so you can comfortably take temperatures orally, rectally, or under the arm

GERATHERM classic clinical thermometer analogue/thermometer without mercury/analogue clinical thermometer without batteries/thermometer Made in Germany

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Why We Love It

Manufactured for maximum reliability in Germany.
100% hygienic and anti-allergenic.
Extremely accurate and mercury-free.

Main Highlights

Clinical glass thermometer made in Germany – We manufacture our globally patented, analogue fever thermometer in Germany and rely on the highest product quality of the thermometers.
Without mercury - The analogue clinical thermometer always works thanks to batteries that are not required. The measuring liquid of the Geratherm classic clinical thermometer consists of a liquid metal alloy (gallium, indium, tin).
100% hygienic & hypoallergenic - The clinical thermometer is waterproof and easy to clean. The temperature measuring device is suitable for allergy sufferers as it is free from nickel and PVC. The clinical thermometer can be used rectally, axillary & orally.
Guaranteed measuring accuracy - The Geratherm classic analogue clinical thermometer measures correctly (+0.1 / -0.15°C) in the measuring range from 35.5 to 42°C. This clinical thermometer gives you a reliable result.
Included accessories - The analogue clinical thermometer from Geratherm is supplied with a protective case for the thermometer & a reset tool. This allows the measuring liquid in the glass thermometer to be easily shaken down for a new measurement.

Ovulation Tracker Digital Basal Thermometer: Easy@Home BBT Thermometer for Fertility Prediction - Basal Body Thermometer for Accurate Temperature Monitoring with Premom App Purple DMT-3018

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Why We Love It

Tracks fertile window efficiently.
Quick and accurate measurements.
Flexible, waterproof, and cleanable.

Main Highlights

The basal thermometer is a must-have for easily detecting your fertile window and tracking your ovulation day. By entering your basal body temperature manually, the Premom app can automatically chart your reading inputs and draw your BBT shift digitally. Whether you are trying to conceive(TTC), avoid pregnancy naturally, or just want to know your body better, the digital basal thermometer does it all with ease.
Quick and accurate measurement: The BBT thermometer for ovulation(1/100 Degree) has high accuracy at ±0.05℃/±0.10℉. The fast basal body thermometer only takes about 60 seconds for the result to appear. Take immediately upon awakening or before any activity for the most precision. Easily recall your last measured temperature in memory.
Soft Beep Alarm: The basal body thermometer for ovulation tracking has a gentle confirmation beep, when testing is complete. No timer needed. No need to worry about waking up your sleeping partner beside you either. Turn the smart oral basal thermometer off when finished, note that pressing the ON/OFF button down for 2 seconds will switch the measurement unit between Fahrenheit and Celsius.
Flexible and Waterproof: The fertility tracker thermometer tip is flexible and waterproof. Easy to clean by using alcohol or a damp cloth. Note: When "℉" or "℃" starts flashing with Lo on display, the fertility thermometer is then ready for use. This does not mean the battery low.
Customer Service: Experienced customer service agents are available for any questions you may have. We are so confident that you will love the oral basal body thermometer.

Digital Basal Body Thermometer Fertility Monitor Record BBT Manually, Draw BBT Chart Pinpoint Ovulation Day, High Accuracy Perfect Companion for Ovulation (Pink)

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Why We Love It

Highly accurate and reliable.
Ideal for natural family planning.
Features flexible measuring point.

Main Highlights

Good Choice for Family Plan - This new-version thermometer, which has the high accuracy of 1/100th degree, can be used as an ideal thermometer for pregnancy, or as one more accurate and reliable basal thermometer to monitor, like fever. Anyway, for the natural family planning process, this highly sensitive oral thermometer is an excellent device.
Manually Entering & Automatically Chart - Use Femometer APP to record your BBT data (manually enter data into the app). The APP will automatically draw your BBT chart and pinpoint your ovulation. We respect your data privacy. All your data is safely stored in the cloud but is accessible via app.
Not the Fastest but Accurate - Passed clinically test and used the latest advanced sensor probe, this oral thermometer may take a little longer when tracking your actual basal body temperature. But it also means you can know exactly what's going on in your body.
Safe & Multifunctional - Safe to use, and for all ages like adults, kids, toddlers or babies. This digital thermometer is made from high-quality material. Waterproof design is easy to clean. For disinfection, 75% ethanol can be used. Easy, convenient and eco-friendly.
Full Customer Service - We provide 1-year service on quality-related problems. Technical service is available. For any issues, please contact our Customer Service Team directly or with Femometer APP at any time.

Citizen Digital Thermometer for Basal Body Temperature Readings - Body Temperature Thermometer with Fever Alarm and One Button Operation - Adults, Kids, Ovulation, Newborn, and Baby Thermometers

25% OffFree Shipping

Why We Love It

Ensures family's safety and protection.
Convenient cleaning with water resistance.
Quick, precise temperature readings.

Main Highlights

IDEAL FOR FAMILY USE. The digital temperature thermometer from Citizen includes antibacterial agents, making it perfect for oral, underarm, and rectal use; and the ideal digital thermometer for adults, kids, and babies. This protection also makes it a suitable thermometer for newborns and for use as a basal thermometer for ovulation
EASY CLEAN THERMOMETER. Certified with an IPX5 rating, the temperature thermometer is a water-resistant and fully washable device, making cleaning a fast, safe and easy process. Simply wash the tip of the basal body temperature thermometer with soapy water, especially when using as a baby thermometer
ONE BUTTON OPERATION. The temperature thermometer offers one-button operation, with a 3 digit LCD display and memory recall. After taking your temperature the thermometer will alert you if your results are showing signs of a high temperature with a fever alarm; with a higher accuracy than a mercury thermometer
MEMORY RECALL. When turning on the device, it will automatically display the last recorded body temperature thermometer data; delivering precise temperature results in a span of 60 seconds for oral or rectal use, and 120 seconds for underarm use. This gives multi-use as a medical thermometer, thermometer for baby use, or as a thermometer for ovulation
STORAGE CASE. The CTA303 underarm and oral thermometer comes equipped with its own protective case; designed to store and protect the thermometer. The case protects the thermometer from dust and external agents that could damage the tip; making it a great choice for a temperature thermometer for kids or as a baby thermometer with newborn use

8.9

Excellent

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We scanned 1361 products

We reviewed these offers relevant to the Digital Basal Thermometer within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Easy@Home, femometer, PISPO Ltd, Beurer, Braun Healthcare, Geratherm, Citizen, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Digital Basal Thermometer in the market, we considered we took a deep dive into 6806 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Digital Basal Body Temperature Thermometer Dual Modes: Easy@Home Fertility Thermometer with Backlight LCD Display, Premom APP | Ovulation Tracking & Charting | 1/100th Degree High Precision. We love many things about this product by Easy@Home. What sets it apart from the competition is Fast and highly accurate readings, Advanced features with mobile app, Comfortable and user-friendly design.
The best value product for most shoppers and where user satisfaction is continuously the highest is Digital Basal Thermometer for Ovulation with Backlight LCD Display, Premom APP(NOT Bluetooth), 1/100th Degree High Precision and Memory Recall, Ovulation Tracking, Charting & Natural Family Planning by Easy@Home based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Digital Basal Thermometer and the best cost-to-value ratio is Braun Age Precision Digital thermometer - Digital Stick for Multi-Site Usage - Orally, Rectally or Underarm - Baby and Infant Friendly - #1 Brand among doctors(1) - PRT2000at Braun Healthcare with a 41% discount.
Our list of the best Digital Basal Thermometer is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Digital Basal Thermometer in The UK

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We scanned 1361 products

We concluded that: