Beurer FT 58 Infrared Ear Thermometer

The Beurer FT 58 Infrared Ear Thermometer is a tympanic (ear) thermometer that uses infrared technology to estimate body temperature from inside the ear canal — a quick, non-invasive way to check for a fever in babies, toddlers and the rest of the family. Because you're not asking a sleeping or unsettled little one to hold still for an under-arm or oral reading, it's a practical option for those moments when speed and minimal fuss matter most.

Beyond body temperature, the FT 58 doubles as a room and object thermometer, so you can also check the warmth of a bath, a bottle or the nursery. Readings display in your choice of °C or °F, and the device comes with 10 interchangeable protective caps to help keep each measurement hygienic when it's shared across household members.

How it works

• Infrared measurement: The sensor reads infrared heat from inside the ear, giving a non-invasive body-temperature estimate in seconds without contact-time discomfort.
• Measurement accuracy: In the ear, the FT 58 is accurate to ±0.2°C across the 35.5°C to 42.0°C range; outside that range and for object and room readings, wider tolerances apply as per the device specifications.
• Fever alert: A warning tone sounds from 37.5°C and a temperature alarm from 38.0°C, while friendly smiley icons on the display show at a glance whether the reading is within a normal range or flagged.
• Memory function: Up to 10 previous readings are stored, so you can track how a temperature is trending over the course of an illness.
• Multiple modes: Alongside body temperature, the device measures room and object temperatures — handy for checking bath water or bottle warmth.

Using it correctly

Before measuring, wipe the sensor tip clean of any dirt, as debris can cause an inaccurate reading. Make sure a protective cap is fitted correctly and clicks into place — if a cap doesn't "snap" on, it can slip off during use and lead to deviations in the result. Operation is a simple one-button affair, and the thermometer switches off automatically to save power, with a low-battery indicator letting you know when it's time to change the two AAA batteries (included).

Best for

The Beurer FT 58 Infrared Ear Thermometer is a great option for parents who:

• Want a fast ear reading that's less disruptive for a sleeping or distressed baby or toddler
• Would find a memory function useful for tracking a temperature over an illness
• Like the idea of one device that also checks room and object temperatures
• Prefer disposable-cap hygiene when a thermometer is shared across the family

It may not be the best fit if you're caring for a newborn under four weeks, where a healthcare provider may advise a different measurement method — check the age suitability that applies to your situation.

Good to know

A thermometer estimates body temperature to help you recognise and monitor a fever; it does not diagnose the cause or severity of an illness. A reading should always be considered alongside your child's age, how they're behaving and their overall condition. Very young infants and any child who seems seriously unwell need prompt clinical assessment regardless of a reassuring number. Ear-canal size and correct probe placement matter for reliability in young babies, so follow the device instructions closely. The FT 58 is a certified medical device and carries a 60-month (5-year) warranty.

Pandylane Pro Tip: The protective caps are a consumable, and a Beurer FT 58 Replacement Set of 20 caps is available separately — worth keeping a pack on hand so hygienic measuring is never held up by a missing cap.