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Date of issue: 2020-06-08 
Ref No.: 062020 

TH03F Non-contact Forehead Thermometer 

 

Intended use: The non-contact forehead thermometer is electronic thermometer using an infrared 

detector (thermopile detector) to detect body temperature from forehead center in people of all 

ages. 

Intended operator: Have eight years of education, no maximum. 

Thank you for purchasing this Forehead thermometer. This thermometer is designed with an 

advance infrared and ambient temperature compensation technology for accurate and fast temperature measurements. It also has a wide range 

mode to scan real time temperature. It is for home use, not meant to replace a visit to the doctor. Please also remember to compare the 

measurement result to your regular body temperature. Please consult with doctor if you have health concerns.

 

Operating Instructions:

 

1

 

Always make sure the probe lens is clean without any damage, and the forehead is clean. 

Warning: Choking from swallowing small parts and batteries by children or pets is possible, please keep small parts and batteries at places       

              where children and pets can’t reach. 

2

 

Power on:

 Press the “ON/MEM” button. 

3

 

Mode selection: 

3.1

 

FOREHEAD Mode:

 The preset mode of thermometer is forehead. The thermometer 

is ready for use after the “

HEAD

” icon stops flashing and two beep sound. 

3.2

 

SURFACE Mode:

 In “

Power On

” mode, press and hold the “ON/MEM” button, then press the “SCAN” button

,

 the ‘

’ icon will replace 

HEAD

” icon in the LCD display.   

4

 

Temperature taking:   

Note: If there is any temperature difference between the places where the device is stored and where you are going to measure,   

          subject and the device should stay in the same room for at least 15 minutes before measurement. 

4.1 Measuring the FOREHEAD temperature: 

You can hold the thermometer within 1 cm from the central forehead (See   

Figure 1) and press the “SCAN” button to get the forehead measurement. The time consuming for measurement might be   

1 second. After two short beeps are heard. 

Note: Forehead temperature is displayed in Oral Mode. This thermometer is an adjusted mode thermometer that converts 

the forehead temperature to display its "Oral equivalent." (according to the result of the clinical evaluation to get the offset  

                        value) 

4.2 Measuring temperature under SURFACE mode: 

When you press the “Scan” button, you will get the temperature immediately   

about 0.6 sec. If you keep pressing the scan button, the reading of measurement will update continuously. 

Note: Surface mode shows the actual, unadjusted temperatures, which is different from the forehead mode.

 

5    Switching between Celsius (°C) and Fahrenheit (°F): 

To change the LCD from °C to °F: In “

Power Off

” mode, press and hold the “SCAN” button, then press the “ON/MEM” button for 3 seconds, icon 

°C

” will be switched to icon “

°F

”. You can also use the same process to change the LCD display from 

°F

 to 

°C

6  Memory Function:

 Press the “ON/MEM” button to see the temperature stored. This thermometer provides 25 sets memory for the body   

temperature. ** Please notice that only the “HEAD” function’s reading will be recorded. 

7  Power off:

 Device will automatically shut down after 1 minute pending to extend battery life. At next power on, it will go back to the default setting   

of “HEAD” temperature function 

Holding the thermometer too long may cause a higher ambient temperature reading of the probe.   

This could make the body temperature measurement lower than usual.   

Fever Indication:

   

If the thermometer detects a temperature

 

37.5

°

C (or 99.5

°

F) under forehead mode, three short beep sound will follow one long beep sound to 

warn the user for potential fever. 

Specifications:

   

Comply with ASTM E1965-98, EN ISO 80601-2-56, IEC/EN60601-1-2 (EMC), IEC/EN60601-1 (Safety) standards, ISO10993, RoHS. 

  Temperature measurement range: Forehead mode 34~42.2°C (93.2~108°F), Surface mode: -22~80°C (-7.6~176°F) 

 

Accuracy: Forehead mode: 

±

0.2°C (0.4°F) within 35~42°C (95~107.6°F), ±0.3°C (0.5°F) for other range. 

          Surface mode: ±0.3°C (0.5°F) within 22~42.2°C (71.6~108°F),  
                     others ±4% or ±2°C (4°F) whichever is greater. 
    Operating Range: 10~40°C (50

°

F ~104°F), 15%~85% RH 

** Storage temperature range: It should be stored at room temperature between -20~+50°C, RH

85% 

Transportation temperature shall be less than 70°C, RH

95% 

Atmospheric pressure: 800~1013 hPa   
Enclosure Rating: IP22 
Dimensions: 79.1 x 39.0 19.3 mm 
Weight: 31.5 grams including battery 
Battery life: around 3,000 continuous readings. 
Expected Service Life: 4 years 

 

The device should not submerge into any liquids and expose it to direct moisture.

 

 

There is no gender and age limitation for using infrared thermometer. 

  This is not an AP

 

or APG product.

 

 

 

 
 

 

 

 

 
 
 

 

Changing the Battery:   

It is supplied with one lithium cell (CR2032x1pcs) 

 

1

  Loosen the screw on the back housing to open the back housing. 

2

  Use the screwdriver to flip out the battery. Insert a new battery under the 

metal hook and press the other side of the battery down until you hear a “click” sound. 

3

  Close the upper side and then close the bottom side. 

4

  Fasten the screw on the back housing.

 

 

Troubleshooting: 
Error Message 

Problem 

Solution 

 

Device stabilization in process.

 

Wait until 

 stops flashing.

 

 

Battery is low and no more measurements are possible.

 

Replace the battery.

 

 

The ambient temperature is not within the range between 
10

°

C and 40

°

C (50

°

F~104

°

F). 

Allow the thermometer to rest in a room at least 15 minutes at 
room temperature: 10

°

C~40

°

C(50

°

F~104

°

F). 

 

Error 5~9, the system is not functioning properly. 

Unload the battery, wait for 1 minute and repower it. If the 

message reappears, contact the retailer for service. 

 

Temperature taken is higher than 42.2

°

C (108.0

°

F) for 

forehead mode or 80

°

C (176

°

F) for surface mode. 

1) For forehead mode, please stay in a stable environment for 

5mins and avoid the exercise and bath for 30min, then make 

sure the probe lens is clean before take a new temperature 

measurement. 

2) For surface mode, please select target within specifications. 

 If a mal-function still exists, please contact the nearest 

retailer. 

 

Temperature taken is lower than 34

°

C (93.2

°

F) for 

forehead mode or –22

°

C (-7.6

°

F) for surface mode. 

 

Device can not be powered on to the ready stage. 

Change with a new battery. 

Warranty: 

12 months   

Manufacture Date

as the serial number (please open the battery cover, it is shown on the inside of the device.)   

Ex.SN:E512A000001, the first “E” is External, the second number ”5” is the last number of manufacture year, the third and the fourth number “12” is 
the manufacture month, the others is the serial number.

 

Note: The thermometer is calibrated at the time of manufacture. If you question calibration mode, the accuracy of temperature 

measurements or unexpected events at any time, please contact the dealers or nearest service address. 

Please report to the manufacturer and the competent authority of the Member State in which you are established about any serious  

incident that has occurred in relation to this device. 

 

Warning: No modification of this equipment is allowed. 

 

Please read the instructions for use       

  BF type applied part 

 

 

IMPORTER 
Company Name?        

Company Name? 
General Information: Address? Website? 

** The thermometer is NOT water-proof. Please 

keep the unit dry and away from any liquids.

 

Figure 1

 

Medical Technology Promedt Consulting GmbH           Radiant Innovation Inc.

 

Add: Altenhofstrasse 80, D-66386 St. Ingbert, Germany          Tel: +886-3-5644185, Fax: +886-3-5644170, E-mail:[email protected] 

                                              Add: 1F, No.3, Industrial East 9

th

 Rd., Science-Based Industrial Park,   

                                                                                                    HsinChu, Taiwan    Http://www.radiantek.com.tw 

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