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A&D Medical UT801 4-in-1 Infrared Thermometer

A&D Medical UT801 4-in-1 Infrared Thermometer

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  • ✔️ Measures forehead, ear, object and room temperature instantly
  • ✔️ Non-contact forehead mode ideal for sleeping babies
  • ✔️ Colour-coded fever alert for fast, clear interpretation
  • ✔️ Accurate to ±0.2°C in body temperature mode
  • ✔️ Suitable for all ages from newborns to older adults

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What Is an Infrared Thermometer 4 in 1 and How Can It Help You?

 

Keeping track of body temperature at home has never been more straightforward. The infrared thermometer 4 in 1 from A&D Medical — the UT801 — is a non-contact device that measures forehead temperature, ear (tympanic) temperature, object surface temperature, and ambient room temperature, all from a single handheld unit. Whether you're monitoring a feverish toddler at 2am or checking whether a baby's bath water is the right temperature, this thermometer covers it. You can find it alongside other useful home health tools in our Electrical Health and Diagnostic collection.

The NHS advises that a high temperature in adults is 38°C or above, and in children it can be a sign that the body is fighting an infection. Having a reliable thermometer at home means you can make faster, more informed decisions about whether to manage symptoms at home or seek medical advice. At £15.95, the UT801 offers genuine clinical utility without the cost of a dedicated clinical device.

 

How Does the A&D Medical UT801 Thermometer Work?

 

Infrared thermometers work by detecting the thermal radiation — essentially heat energy — emitted naturally from the skin surface or any object. The UT801's sensor captures this radiation and converts it into a temperature reading displayed on the backlit LCD screen within approximately one second. There's no need for physical contact, which reduces the risk of cross-contamination and makes repeated measurements far less disruptive, especially with young children.

  • Point the sensor 1–3 cm from the forehead or target surface
  • Select the appropriate mode (forehead, ear, object, or room)
  • Press the measurement button once
  • Read the result on the backlit display — a colour-coded alert indicates whether the reading is within normal range
  • The device stores the last reading in memory for easy reference

 

Who Should Use the A&D Medical UT801 Thermometer?

 

This thermometer is suitable for virtually any household. Its non-contact design makes it especially practical for families with young children, where minimising distress during illness is a priority. It's equally useful for older adults, carers, and anyone who wants a quick, hygienic way to monitor temperature without fuss.

  • Parents and carers of babies, toddlers, and young children
  • Adults monitoring their own temperature during illness
  • Carers supporting elderly or immunocompromised individuals
  • Anyone wanting a versatile home health monitoring device

 

How Does the UT801 Compare to Other Home Thermometers?

 

Feature A&D Medical UT801 Standard Digital Thermometer
Measurement modes 4 (forehead, ear, object, room) 1 (oral/axillary/rectal)
Contact required? No (non-contact forehead mode) Yes
Reading speed ~1 second 30–60 seconds
Suitable for babies? Yes Limited (rectal only recommended under 3 months)

 

Is the A&D Medical UT801 Clinically Reliable for Home Use?

 

The UT801 is designed to meet the standards expected of a home medical device. For forehead readings to be accurate, the skin should be dry, free from sweat, and not recently exposed to extreme temperatures. Avoid taking readings immediately after exercise, a hot bath, or prolonged time outdoors in cold weather. The infrared thermometer 4 in 1 should be stored at room temperature and allowed to acclimatise for at least 30 minutes if brought in from a cold environment before use.

It's worth noting that no home thermometer replaces clinical assessment. If a child under three months has a temperature of 38°C or above, or a child aged 3–6 months has a temperature of 39°C or above, the NHS recommends seeking urgent medical advice. For adults, a persistent fever lasting more than three days warrants a GP consultation. If you're managing cold or flu symptoms alongside a fever, our Cold and Flu collection has a range of supportive treatments.

This product is a medical device. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

A&D Medical UT801 4-in-1 Infrared Thermometer specifications
Treatment category Temperature monitoring / home diagnostics
Mechanism of action Infrared thermal radiation detection
Effective for Measuring forehead, ear, object, and ambient room temperature
Suitable for Adults, children, babies (non-contact forehead mode)
Active ingredient N/A — medical device
Pack size 1 thermometer unit
UK classification Medical device (CE marked)
Preparation Electronic infrared sensor device
Route of administration External — non-contact infrared measurement

Specifications of A&D Medical UT801 4-in-1 Infrared Thermometer

 

What Is the A&D Medical UT801 and What Is It Used For?

 

The A&D Medical UT801 is a non-contact infrared thermometer designed for home use. It measures body temperature via the forehead or ear, and can also measure the surface temperature of objects and the ambient temperature of a room. It is used to detect fever in adults and children, monitor temperature trends during illness, and check environmental temperatures relevant to infant care — such as bath water or room temperature.

The NHS defines a high temperature (fever) as 38°C or above. Fever is one of the body's natural responses to infection, and monitoring it at home helps you decide when to manage symptoms yourself and when to seek medical attention. This device is not a medicine and does not treat fever — it is a diagnostic aid only.

 

What Do You Need to Know Before Using the A&D Medical UT801?

 

Although the UT801 is a medical device rather than a medicine, there are important considerations before use:

  • Do not use as a substitute for professional medical assessment
  • Do not rely solely on this device for clinical decisions in high-risk individuals (e.g. immunocompromised patients, neonates)
  • Avoid taking readings immediately after physical activity, bathing, or exposure to extreme temperatures
  • Ensure the sensor lens is clean and free from dust or moisture before each use
  • Do not use in direct sunlight or near heat sources, as this may affect accuracy
  • Keep out of reach of young children when not in use — the device contains small batteries

There are no known drug interactions as this is a medical device. However, certain medical conditions — such as conditions affecting peripheral circulation — may influence the accuracy of forehead temperature readings. If you are unsure whether this device is appropriate for your situation, speak to your pharmacist or GP.

  • Drug interactions: None applicable — medical device

 

How Should You Use the A&D Medical UT801?

 

Using the UT801 correctly is essential for accurate readings. Follow these steps each time:

  1. Ensure the device has been at room temperature for at least 30 minutes before use
  2. Clean the sensor lens gently with a dry, lint-free cloth
  3. Press the mode button to select your desired measurement mode (forehead, ear, object, or room)
  4. For forehead mode: position the sensor 1–3 cm from the centre of the forehead, ensuring the skin is dry and free from hair
  5. For ear mode: gently insert the probe tip into the ear canal and press the measurement button
  6. Press the measurement button and hold steady until you hear the beep
  7. Read the temperature on the backlit LCD display — a colour-coded indicator will show whether the reading is normal, elevated, or high
  8. Record the reading and repeat if necessary for confirmation
Indication Age Group Mode Recommended Normal Range
Fever monitoring Adults Forehead or ear 36.1°C – 37.2°C
Fever monitoring Children (3 months+) Forehead 36.4°C – 37.4°C
Fever monitoring Babies (under 3 months) Forehead (seek GP advice if ≥38°C) 36.4°C – 37.4°C
Room/object temperature All ages Object or room mode Varies by context

If you're caring for a baby or young child and want to explore other products suited to infant health, our Baby and Toddler collection includes a range of relevant items.

 

What Are the Possible Side Effects of the A&D Medical UT801?

 

As a non-contact medical device, the UT801 does not cause pharmacological side effects. However, there are practical limitations and potential issues to be aware of:

Common issues with use:

  • Inaccurate readings if the sensor lens is dirty or obstructed
  • Lower accuracy if the forehead is sweaty, wet, or recently exposed to cold air
  • Readings may vary slightly between consecutive measurements — this is normal for infrared devices

Less common issues:

  • Device malfunction if batteries are low — replace with fresh batteries if readings seem erratic
  • Display errors if the device is used outside its operating temperature range
  • Ear mode readings may be less accurate if there is significant earwax build-up

 

How Should You Store the A&D Medical UT801?

 

Correct storage helps maintain the accuracy and longevity of the device. If you're also managing a first aid kit at home, our First Aid collection has everything you need to keep alongside your thermometer.

  • Store at room temperature (10°C–40°C) in a dry location
  • Keep away from direct sunlight, moisture, and heat sources
  • Do not store in a refrigerator or freezer
  • Remove batteries if the device will not be used for an extended period
  • Store in the original protective case or a clean, dry container
  • Keep out of reach of children
  • Do not expose to strong electromagnetic fields or static electricity

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy the A&D Medical UT801 thermometer online in the UK?

You can buy the A&D Medical UT801 4-in-1 infrared thermometer directly from Cured Pharmacy online for £15.95 with fast UK delivery. It is available without a prescription as it is a medical device, not a medicine. No consultation is required — simply add it to your basket and check out.

How does the A&D Medical UT801 infrared thermometer work?

The UT801 uses an infrared sensor to detect thermal radiation emitted naturally from the skin surface or any object, converting it into a temperature reading in approximately one second. There is no physical contact required in forehead mode, which reduces the risk of cross-contamination between users. The device processes the infrared signal electronically and displays the result on a backlit LCD screen with a colour-coded fever alert.

How do I use the A&D Medical UT801 step by step?

Select your measurement mode using the mode button, hold the sensor 1–3 cm from the forehead or target surface, press the measurement button, and read the result on the display. For ear mode, gently insert the probe tip into the ear canal before pressing the button. Always ensure the sensor lens is clean and the skin is dry for the most accurate reading.

What temperature is considered a fever in adults?

According to the NHS, a high temperature in adults is 38°C or above. If your reading reaches this threshold, you should rest, stay hydrated, and monitor your symptoms closely. Seek medical advice if the fever lasts more than three days, is very high (above 39.5°C), or is accompanied by other concerning symptoms such as a rash or difficulty breathing.

Is the A&D Medical UT801 suitable for babies and newborns?

Yes, the non-contact forehead mode makes the UT801 particularly well-suited to babies and young children, as it avoids the distress associated with oral or rectal thermometers. For babies under three months, the NHS recommends seeking urgent medical advice if the temperature is 38°C or above, regardless of how well the baby appears. You can find other products for infant care in our Baby and Toddler collection.

What are the four measurement modes on the UT801?

The four modes are: forehead (non-contact body temperature), ear (tympanic body temperature), object surface temperature, and ambient room temperature. Each mode is selected by pressing the dedicated mode button on the device before taking a reading. This versatility makes it useful not just for monitoring illness but also for checking room temperature for infant comfort or the temperature of food and liquids.

How accurate is the A&D Medical UT801 infrared thermometer?

The UT801 is designed to provide clinically reliable readings when used correctly, with a typical accuracy of ±0.2°C in body temperature mode. Accuracy can be reduced by sweat on the forehead, hair covering the measurement site, or using the device in environments with extreme temperatures. Allow the device to acclimatise to room temperature for at least 30 minutes if it has been stored in a cold location before use.

What is the best time to take a temperature reading?

For the most accurate result, take a temperature reading when the person has been resting indoors for at least 15–20 minutes, away from heat sources, air conditioning, or cold air. Avoid measuring immediately after exercise, eating, drinking, or bathing. The NHS notes that body temperature naturally fluctuates slightly throughout the day, being slightly lower in the morning and higher in the late afternoon.

Can I use the UT801 to check if my child has a fever without waking them?

Yes — this is one of the key practical advantages of the non-contact forehead mode. You can hold the sensor 1–3 cm from your child's forehead while they sleep and take a reading without disturbing them. The device operates quietly and the backlit display allows you to read the result in low light. This makes it particularly useful for overnight monitoring during illness.

What are alternatives to the A&D Medical UT801?

Alternatives include standard digital oral thermometers, tympanic (ear-only) thermometers, and axillary (underarm) thermometers. The UT801 differs by offering four measurement modes in a single device, making it more versatile for home use than single-mode alternatives. Browse our full range of home diagnostic tools in the Electrical Health and Diagnostic collection.

How do I manage a fever once I have taken a reading?

If the reading confirms a fever, the NHS recommends resting, drinking plenty of fluids, and taking paracetamol or ibuprofen if appropriate for the person's age and medical history. Keep the room cool and wear light clothing. Do not use cold baths or fans to cool a feverish child rapidly, as this can cause shivering and raise core temperature further.

Who is eligible to use the A&D Medical UT801?

The UT801 is suitable for use across all age groups, from newborns to older adults, and requires no prescription or clinical training to operate. It is particularly useful for parents, carers, and anyone managing a chronic condition that requires regular temperature monitoring. There are no contraindications to using this device, though it should not replace professional clinical assessment in high-risk situations.

What should I do if the UT801 gives an error reading?

Error readings are usually caused by a dirty sensor lens, low battery, or using the device outside its recommended operating temperature range. Clean the lens gently with a dry lint-free cloth, replace the batteries if needed, and allow the device to reach room temperature before retrying. If error readings persist after these steps, contact A&D Medical customer support or your point of purchase.

How long does the A&D Medical UT801 last and can it be used long-term?

The UT801 is designed for long-term home use and, with proper care and storage, should remain accurate and functional for several years. Battery life will depend on frequency of use — the device uses standard AAA batteries which are easy to replace. Regularly cleaning the sensor lens and storing the device correctly will help maintain its accuracy over time.

What does the latest guidance say about using infrared thermometers at home?

Current NHS guidance supports the use of non-contact infrared thermometers as a practical and hygienic option for home temperature monitoring, particularly for young children. Clinical studies have shown that forehead infrared thermometers provide readings comparable to tympanic thermometers when used correctly, though they may be slightly less accurate than rectal measurement in very young infants. Always follow the manufacturer's instructions and NHS fever management guidance when interpreting results.

How Should You Use the A&D Medical UT801 Thermometer?

Using the UT801 correctly ensures you get the most reliable reading every time. Before you begin, make sure the sensor lens is clean and the device has been at room temperature for at least 30 minutes — this is especially important if it has been stored somewhere cold.

Follow these steps for an accurate measurement:

What Is the Correct Dose of the A&D Medical UT801 Thermometer?

As a medical device rather than a medicine, the UT801 does not have a "dose" in the pharmacological sense. However, the table below outlines the recommended measurement approach by indication and age group to help you use the device appropriately.

Taking more than one reading and averaging the results can improve reliability, particularly in young children who may move during measurement.

When Is the Best Time to Use the A&D Medical UT801 Thermometer?

For the most accurate body temperature reading, measure when the person has been resting indoors for at least 15–20 minutes. Avoid taking readings immediately after exercise, eating, drinking hot or cold liquids, or bathing, as these activities can temporarily alter skin surface temperature and affect the result.

Body temperature naturally fluctuates throughout the day — it tends to be slightly lower in the morning and slightly higher in the late afternoon. If you are tracking temperature trends during an illness, try to measure at consistent times each day for the most meaningful comparison.

How Long Can You Use the A&D Medical UT801 Thermometer For?

The UT801 is designed for long-term home use and can be used indefinitely with proper care and maintenance. There is no expiry date on the device itself, though battery replacement will be needed periodically depending on frequency of use.

Regularly clean the sensor lens with a dry lint-free cloth and store the device in its protective case when not in use. If you notice consistently erratic or implausible readings over time, the sensor may need recalibration or the device may need replacing. Contact A&D Medical customer support if you have concerns about ongoing accuracy.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Issues When Using the A&D Medical UT801?

Because the UT801 is a medical device rather than a medicine, it does not cause pharmacological side effects. However, there are common practical issues that can affect the reliability of your readings if the device is not used correctly. Being aware of these helps you get the most accurate results every time.

  • Inaccurate readings due to a dirty or obstructed sensor lens
  • Lower accuracy when the forehead is sweaty, wet, or recently exposed to cold air
  • Slight variation between consecutive readings — this is normal for infrared devices
  • Readings affected by hair covering the measurement site on the forehead

What Are the Less Common Issues With the A&D Medical UT801?

Less frequently, users may encounter technical issues rather than user-related inaccuracies. These are usually straightforward to resolve and do not indicate a fault with the device itself.

  • Erratic or error readings when battery charge is low — replace batteries promptly
  • Display errors if the device is used outside its operating temperature range (typically 10°C–40°C)
  • Reduced accuracy in ear mode if there is significant earwax build-up in the ear canal
  • Inconsistent readings if the device has not been allowed to acclimatise to room temperature after storage in a cold environment

What Are the Serious Limitations of the A&D Medical UT801?

While the UT801 is a reliable home diagnostic tool, it is important to understand its clinical limitations. No home thermometer — infrared or otherwise — should be used as the sole basis for clinical decision-making in high-risk situations. If a baby under three months has a temperature of 38°C or above, or a child aged 3–6 months has a temperature of 39°C or above, the NHS recommends seeking urgent medical attention regardless of how well the child appears.

In adults, a very high fever (above 39.5°C), a fever accompanied by a rash, difficulty breathing, confusion, or severe headache, or a fever that does not respond to paracetamol or ibuprofen warrants prompt medical assessment. Do not delay seeking help because a home reading appears borderline.

What Should You Do If You Experience Problems With the A&D Medical UT801?

If you are getting consistently unusual readings, start by cleaning the sensor lens with a dry lint-free cloth and replacing the batteries. Allow the device to reach room temperature if it has been stored somewhere cold, and retake the measurement following the instructions carefully. If problems persist, contact A&D Medical customer support or speak to your pharmacist, who can advise on whether the device needs replacing.

If you are concerned that a temperature reading — whether high or low — does not match how the person feels clinically, always trust your clinical judgement and seek medical advice. A thermometer reading is one piece of information, not a complete clinical picture.

Can the A&D Medical UT801 Interact With Other Devices or Medicines?

As a non-contact infrared medical device, the UT801 has no known interactions with medicines. However, certain medications that affect peripheral circulation — such as vasoconstrictors or some cardiovascular medicines — may influence skin surface temperature and therefore affect the accuracy of forehead readings. If you are taking medicines that affect circulation and are concerned about reading accuracy, discuss this with your GP or pharmacist. Strong electromagnetic fields from other electronic devices may also interfere with the display, so keep the device away from mobile phones and other electronics during measurement.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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