15.2025.02 - Thermometer TFA - Free user manual and instructions

Product Type	Digital Thermometer
Brand	TFA
Model	15.2025.02
Measurement Range	-50°C to +70°C (-58°F to +158°F)
Accuracy	±1°C (1.8°F)
Resolution	0.1°C (0.1°F)
Display	LCD
Power Supply	1× AAA battery (1.5V)
Battery Life	Approximately 12 months
Dimensions (approx.)	100×60×20 mm (3.9×2.4×0.8 in)
Weight (with battery)	60 g (2.1 oz)
Main Functions	Current temperature, Min/Max memory, °C/°F switch
Mounting	Stand or wall mount
Cleaning	Wipe with a soft, damp cloth; do not use abrasive cleaners
Safety	Keep away from children; do not immerse in water
Environment	For indoor use only
Spare Parts	Battery (AAA)
Reparability	No user-serviceable parts; do not open the housing
General Info	TFA is a German brand known for precision measuring instruments.

Frequently Asked Questions - 15.2025.02 TFA

How do I switch between °C and °F?

Press and hold the Mode button for 3 seconds until the unit flashes, then press Up or Down to toggle between °C and °F.

What type of battery does the thermometer use?

It uses one AAA 1.5V battery. Open the battery compartment on the back to replace it.

How do I reset the min/max memory?

Press and hold the Min/Max button for 2 seconds to clear the recorded minimum and maximum values.

Why is the display showing '---'?

This indicates the temperature is outside the measurement range (below -50°C or above +70°C). Move the thermometer to a suitable environment.

Can I use this thermometer outdoors?

No, it is designed for indoor use only. Exposure to rain or direct sunlight may damage it.

How do I mount the thermometer on a wall?

Use the hole on the back of the device to hang it on a screw or nail. Ensure the mounting surface is dry and sturdy.

What is the accuracy of the thermometer?

The accuracy is ±1°C within the range of 0°C to 50°C, and slightly less outside that range.

How do I clean the thermometer?

Wipe the exterior with a soft, damp cloth. Do not use chemical cleaners or immerse in water.

Why is the battery indicator low even with a new battery?

Ensure the battery is installed correctly with the +/- terminals matching the markings. If the issue persists, try a different brand of battery.

Is the thermometer recommended for medical use?

No, this is a general-purpose thermometer for ambient temperature measurement, not for body temperature.

USER MANUAL 15.2025.02 TFA

Purple TFA remote control device with digital display showing temperature reading (no text or symbols on device body)

CE

Kat. Nr. 15.2025.02

Instruction manual

www.tfa-dostmann.de/en/service/downloads/instruction-manuals

Hersteller: Shenzhen Everbest Machinery Industry Co., Ltd., 19th Building, 5th Region, Baiwangxin Industry Park, Songbai Road, Baimang, Xili, Nanshan, Shenzhen, China P.C. 518108

Thank you for choosing this instrument from TFA.

This product is based on the latest infrared technology and can be used to measure body temperature, as well as surface temperatures. The temperature measurement is contactless, simple and fast.

1. Before you use this product

- Please make sure you read the instruction manual carefully.

• This information will help you to familiarize yourself with your new device, to learn all of its functions and parts, to find out important details about its first use and how to operate it and to get advice in the event of a malfunction.
• Following and respecting the instructions in your manual will prevent damage to your instrument and loss of your statutory rights arising from defects due to incorrect use.
• We shall not be liable for any damage occurring as a result of non-following of these instructions.
• Likewise, we take no responsibility for any incorrect readings or for any consequences resulting from them.
• Please take particular note of the safety advice!
• Please keep this instruction manual safe for future reference.

2. Delivery contents

• Infrared Forehead Thermometer DT-8807S
- Instruction manual

3. For your safety

• The thermometer has been designed for home use.
• The product should only be used as described within this instruction.
• Before each measurement, check the thermometer for any signs of damage. Only use the device if intact. Unauthorised repairs, modifications or changes to the product are prohibited.
• Operation in strong electromagnetic fields, such as next to a mobile phone, can lead to malfunction. Keep a minimum distance of 3.3 m from such devices when using this device.

Importeur:

• The minimum measurement time until the beep must be maintained without exception.
• Discuss the measured values with your doctor.
• The temperature measured at the forehead area differs from the core body temperature, which is obtained by taking an oral or rectal measurement with a clinical thermometer.

• Check the measurement result with a conventional clinical thermometer:

• if you are using the thermometer for the first time, or you are not yet familiar with the correct use of the device

• if the measurement result is surprisingly low and does not match the state of health
• for newborns up to 6 months of age
• for persons, especially small children, who react unusually in the presence of fever.

Caution! Risk of injury:

• The instrument contains small parts that could be accidentally swallowed by children. Keep this instrument and the batteries out of reach of children. Use under parental supervision.
• Batteries contain harmful acids and may be hazardous if swallowed. If you suspect a battery could have been swallowed or otherwise caught in the body, seek medical help immediately.
• Batteries must not be thrown into a fire, short-circuited, taken apart or recharged. Risk of explosion!
• Low batteries should be changed as soon as possible to prevent damage caused by leaking. Never use a combination of old and new batteries together, nor batteries of different types.
• Wear chemical-resistant protective gloves and safety glasses when handling leaking batteries.

Important information on product safety!

• Do not place the device near extreme temperatures, vibrations or shocks.
• Protect the device from large or abrupt ambient temperature changes.

Infrared Forehead Thermometer DT-8807S

• Steam, dust, smoke, etc., can prevent accurate measurement by obstructing the device's optics.
• The device is not waterproof. Protect it from moisture. Do not immerse in water or other liquids.
• To clean and disinfect the unit, please follow the instructions in the section "Care and Maintenance".

4. Measuring procedure

- Every object releases infrared energy. The optical detector senses the infrared energy, converts this information into a digital reading and the surface temperature is displayed.

4.1 Measurement of body temperature

• In the default setting, in body temperature mode, the thermometer measures the temperature of the infrared heat given by the arterial blood supply under the forehead area and converts this temperature into an oral equivalent temperature. The measurement result is displayed within 1 second. The contactless measuring method allows, for example, to take the temperature of babies without disturbing them during sleep.
• Many people believe that normal body temperature is 37^ , however body temperature, like blood pressure, varies from person to person and during the day. It may range from 35.5^ (95.9°F) to 37.8^ (100.4°F).
• We should remember as well that oral temperature is normally lower by 0.5^ (0.9^) from rectal temperature. The forehead temperature is converted by the infrared forehead thermometer to the commonly used oral temperature. For some people it may show some difference from their normal oral temperature.

Therefore: Practice is important!

- We recommend that you practise using the thermometer on yourself and your family when you're in a healthy condition. In this way you can improve your technique and obtain a reference value for normal body temperature of each member of your family. This in turn will help you to feel more confident to take the temperature when someone is ill.

Infrared Forehead Thermometer DT-8807S GB

5. Get to know the device!

5.1 Elements (Fig. 1)

A 1: IR-Sensor
A 2: Battery compartment
A 3: LED display
A 4: Measuring button

5.2 Display (Fig. 2)

B 1: Symbol for body temperature mode
B 2: Symbol for surface temperature mode
B 3: Temperature display °F
B 4: Temperature display °C
B 5: Temperature display
B 6: Battery symbol

6. Getting started

• The battery compartment is located on the back of the device. Open the battery compartment by sliding the battery cover down.
• Insert two new AAA 1.5 V batteries with the correct polarity.
• After inserting the batteries, the device automatically enters the temperature unit setting mode. You will hear two beeps and °C is flashing. Press the measuring button briefly to select between Celsius (°C) and Fahrenheit (°F) as the temperature unit while the display is flashing. Press and hold the measuring button for 3 seconds to confirm the selection. The device switches off. If you do not make any settings, the device switches off automatically after approx. 30 seconds. The default setting is °C.
• Close the battery compartment again. The cover is properly inserted in the housing, as soon as a click is heard.

7. Operation

7.1 Measuring body temperature on the forehead (Fig. 2)

• Avoid taking a measurement less than 30 minutes after physical exercise, bathing or dining.
• The thermometer and the person to be measured should be in the same room under constant ambient conditions at least 15 minutes before the measurement.
• Always make sure that the sensor is clean and undamaged.
• Clean the forehead from sweat, makeup, etc

Infrared Forehead Thermometer DT-8807S GB

• Now point the measuring sensor at a suitable measuring spot in the middle of the forehead at a distance of about 1 to 4cm .
• Hold it steadily at this position and press the measuring button. «---» is displayed.
• A beep will sound once the measurement is completed, after approx. 1 second. The unit now displays the symbol for body temperature mode (default mode) and the measured temperature. If the temperature taken is lower than 32^ , LO is displayed. If the temperature is higher than 42^ , HI appears.
• The device switches off automatically after approx. 7 seconds, if no button is pressed.
• For repeated accurate measurements, always measure at the same spot.

REMEMBER:

• The forehead temperature is equivalent to oral temperature (oral temperature is normally 0.5°C less than rectal measured temperature.) This is based on the average population. For some people it may be different and it is recommended to learn and recognize the forehead temperature while healthy.
• Alternatively, you can also measure the body temperature in the ear hole, on the earlobe or under the armpit.

7.2 Measuring surface temperature

• After power on, press and hold the measuring button. The symbol for body temperature mode is flashing. Press the measuring button briefly. The surface temperature mode symbol is flashing. Press and hold the measuring button for 3 seconds to confirm the selection.
• Caution: If you do not make any settings, the symbol continues to flash. The device does not switch off automatically.
• Simply aim at the target and press the measuring button. A beep will sound once the measurement is completed, after approx. 1 second. The unit now displays the symbol for surface temperature mode and the measured temperature.

Note:

- This mode shows the actual and unadjusted surface temperature which is different from body temperature.

Infrared Forehead Thermometer DT-8807S GB

• To get the most accurate temperature reading, aim at the target as near as possible.
• Not suitable for measuring shiny or polished metal surfaces (stainless steel, aluminium, etc.).
• The device cannot measure through transparent surfaces such as glass or plastic. It will measure the surface temperature of the glass instead.

8. Care and maintenance

• The sensor is the most delicate part of the infrared thermometer. Please protect the sensor part from dirt.
• For cleaning, please use a cotton swab soaked with medical alcohol (70-75%).
• Allow the sensor to dry completely for at least 1 minute.
• Clean the rest of the unit with a soft, slightly damp cloth. Do not use solvents or scouring agents.
• Remove the batteries if you are not going to use the device for a long period of time.

8.1 Battery replacement

• Change the batteries when the battery symbol appears on the display.
• Confirm the unit is switched off before changing batteries.
• Please follow the instructions on the section "Getting started".

9. Trouble shooting

Display Problem Solution

No display → Press the measuring
	button to switch on the device
	→ Ensure that the battery polarity is correct
	→ Change the batteries
Incorrect display	→ Remove the batteries, wait for 1 minute and restart the device
	→ Change the batteries

Infrared Forehead Thermometer DT-8807S GB

HI In body temperature → Please select the mode: target within specifi-Temperature taken cations is higher than +42°C (107,6°F)

LO In body temperature → Please select the mode: target within specifi-Temperature taken cations is lower than +32°C(89,6°F)

OL In surface mode: → Please select theThe measured target within specifi-temperature is cationsoutside therange 0...60°C(32...140°F)

If your device fails to work despite these measures, please contact the supplier from whom you have purchased the product from.

10. Waste disposal

This product has been manufactured using high-grade materials and components which can be recycled and reused.

Never dispose of empty batteries and rechargeable batteries in household waste. As a consumer, you are legally required to take them to your retail store or to appropriate collection sites depending on national or local regulations in order to protect the environment.

The symbols for the heavy metals contained are: Cd=cadmium, Pb=lead, Hg=mercury

This instrument is labelled in accordance with the EU Waste Electrical and Electronic Equipment Directive (WEEE).

Infrared Forehead Thermometer DT-8807S GB

Please do not dispose of this instrument in household waste. The user is obligated to take end-of-life devices to a designated collection point for the disposal of electrical and electronic equipment, in order to ensure environmentally-compatible disposal.

1. Specifications

Model DT-8807S
Type Infrared Thermometer
Body temperature modeMeasuring range 32.0...42.0°C(89.6...107.6°F)
Precision ±0.3°C (±0.5°F)
Surface temperature modeMeasuring range 0...60°C (32...140°F)
Resolution 0.1 °C (0.1°F)
Storage conditions	Temperature:-20°C...+50 °C(-4°F...122°F)Humidity:< 85 % rH
Transport conditions	Temperature:-10...+60°C (14...140°F)Humidity:< 85 % rH
Ambient conditionsfor use 15°C...35°C (59...95°F)	Temperature:Humidity:< 85 % rH
Duration of measurement	About 1 second
Automatic switch-off	After about 1 minute

Infrared Forehead Thermometer DT-8807S GB

IP protection class IPX0

Batteries 2 x 1,5 V AAA not included

Average battery life >1000 measurements

Expected service life 4000 measurements

Dimensions 35 x 146 x 35 mm

Weight 69 g (instrument only)

Reference to standards Complies with ASTM E1965-98, EN ISO 80601-2-56, IEC/EN 60601-1-2 (EMC), IEC/EN60601-1 (Safety) standards, IEC/EN 60601-1-11

This device complies with the requirements of the Directive for Medical devices 93/42/EEC.

12. Explanation of symbols

CE 0197 Declaration of European conformity, number of the notified body

Device complies with protection class BF

Consult instructions for use Storage conditions: Temperature: -20°C...+50 °C (-4°F...122°F) Humidity: < 85 % rH Ambient conditions for use: Temperature: 15°C...35°C (59...95°F) Humidity: < 85 % rH Transport conditions: Temperature: -10...+60°C (14...140°F) Humidity: < 85 % rH

Infrared Forehead Thermometer DT-8807S GB

Manufacturer: Shenzhen Everbest Machinery Industry Co., Ltd., 19th Building, 5th Region, Baiwangxin Industry Park, Songbai Road, Bai-mang, Xili, Nanshan, Shenzhen, China P.C. 518108

EU Representative: Lotus NL B.V. Koningin Julianaplein 10, 1e Verd, 2595AA, The Hague, Netherlands

Importer:

No part of this manual may be reproduced without written consent of TFA Dostmann. The technical data are correct at the time of going to print and may change without prior notice.

The latest technical data and information about this product can be found in our homepage by simply entering the product number in the search box.

www.tfa-dostmann.de