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PRODUCT NUMBER: THDG986

Non-Contact Infrared Human 

Forehead Thermometer Instructions

This is a non-contact infrared thermometer applicable to forehead measurement. The thermometer measures body temperature by collecting heat 
radiation emitting from forehead. New probe structure is adopted in this thermometer. It’s a simply operated, hygienic, reliable and highly accurate 
thermometer. Users can get precise reading within one second by one touch. This thermometer is cost-effective and is widely used in schools, 
customs, hospitals and for family use. 

This thermometer is also capable of measuring object temperatures ranging from 32°F–199.4°F (0°C–93°C).

This thermometer is classified as a Class II Medical Device, sorted as internally-powered equipment and type B application device. Water proof 
rating is: IPXO. It is prohibited to use this thermometer in flammable anesthetic gas or gas mixture of air and oxygen or nitrous oxide. This is a 
continuous operation equipment. It is classified as II a by EU.

Any object can generate a certain portion of infrared radiant energy per its own temperature. The radiant energy and its wavelength distribution 
are subjected to its surface temperature. Based on this principle, this thermometer is designed to detect infrared radiation at 5 –14um by a highly 
precise infrared sensor made in Germany. By adopting this high quality sensor plus special calculation and calibration, this thermometer is able to 
take accurate body temperature.

•  Adopting reliable sensor made in Germany
•  All-new, patented probe design to ensure high accuracy
•  Excellent adaption to ambient temperature. Accurate and reliable even under complicated surroundings
•  Measurement mode for human body and object available, one button to switch measurement mode
•  Beeper for fever or high temperature
•  °C or °F reading available
•  Automatic shut-off
•  Storage of last 10 readings
•  LCD with 3 backlight color options for easy reading  

Effective Distance

5cm – 8cm

Measurement Method

Non-Contact

Range

Human body

95°F–109.2°F (35°C–42.9°C) 
≤95°F/35°C: “Lo” Displays 
>109.9°F/42.9°C: “Hi” Displays

Object

32°F–199.4°F (0°C– 93°C) 
<32°F/0°C: “Lo” Displays 
>199.4°F/93°C: “Hi” Displays

Accuracy

Human Body

±0.4°F/0.2°C

Object

±1.8°F/1.0°C

Resolution

0.1°F/0.1°C

Working Condition

60.8°F–104°F (16°C– 40°C) 
RH≤85% Non-condensing 
“ERR” displays when it is not used under working condition

Storage Condition

-4°F–131°F (-20°C –55°C) 
RH≤85% Non-condensing

INTRODUCTION & CLASSIFICATION

FEATURES

TECHNICAL PARAMETERS

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