background image

IR42

Infrared Forehead

Thermometer

Operation Instructions

9.   Do not use in presence of flammable anesthetic mixtures.

10. Do not use accessories which are not supplied or recommended by the 

manufacturer. Do not try to modify the device to prevent any dangers.

11. Proper maintenance is essential to the longevity of your device. If you are 

concerned about the accuracy of measurement, please contact the local 

customer service or place of purchase for help.

12. Always contact the manufacturer or the manufacturer’s representative to 

report unexpected operation or event. Do not try to fix it by yourself.

13. When using the thermometer, stay away from electromagnetic radiation, 

such as the mobile in use.

14. Do not expose the device to strong electrostatic fields or strong magnetic 

fields to avoid affecting the measurement accuracy.

15. Used in close proximity to others, EMC must be tested and verified.

16. Keep probe covers out of reach of children. The small parts detached from 

the device may result children choking from inhaling or swallowing.

17. Do not try to maintain the device while it is in use. 

18. This thermometer has been calibrated at the factory. If you follow the 

instructions, you don't need to adjust it regularly. But if you are in doubt 

about the accuracy of the readings, please contact the customer service.

CAUTIONS AND WARNINGS

• Always operate the thermometer in an operating temperature range 10°C to 

40°C (50°F to 104°F), and relative humidity below 85%.

• Always store the thermometer in a cool and dry place: temperatures between 

-20°C to 60°C (-4°F to 140°F); relative humidity below 85%. Avoid direct 

sunlight.

• Avoid dropping the thermometer.

• This thermometer is not intended to be a substitution for a consultation with 

your physician.

LCD SCREEN

311-1242100-010

Version 1.0   2020/02

INTRODUCTION

Thank you for choosing IR42 Forehead Thermometer. Please read this 

instruction manual first so you can use this thermometer safely and correctly. 

Please keep this instruction manual for future reference. This innovative 

medical device uses advanced infrared (IR) technology to measure 

temperature instantly and accurately on the forehead / surface. The IR42 

Forehead Thermometer delivers a body temperature reading from the thermal 

radiation emitted from the forehead without contact to the body. (The surface 

temperature measurement is not for medical purposes.)

Before using this product, please read the following contents thoroughly and 

carefully.

INTENDED USE

The IR42 forehead thermometer is intended for the intermittent measurement 

and monitoring of human body temperature from the forehead. The device is 

intended for use of all ages for home and professional use by one with a good 

understanding of the operation instruction, where the patient may be an 

operator.

HOW DOES IT WORK

The thermometer measures the infrared heat generated by the surface of the 

skin over the vessel and its surrounding tissue.

The thermometer then converts it into a temperature value shown on LCD.

IMPORTANT SAFETY INSTRUCTIONS

READ THIS BEFORE USING AND KEEP THESE INSTRUCTIONS

1.   Close supervision is necessary when the thermometer is used by, on, or 

near children, handicapped persons or invalids.

2.   Use the thermometer only for the intended use described in this manual.

3.   Do not use the thermometer if it is not working properly, or if it has 

sustained any damage.

4.   Keep the sensor end clean and free of debris. See Maintenance section for 

instructions.

5.   Do not use ethylene oxide gas, heat, autoclave, or any other harsh 

methods to sterilize the device.

6.   Put in place the protective sensor cap on the sensor end when not in use.

7.   If coming from an environment of warmer or cooler temperature or after a 

period of exertion, allow the user and the thermometer to acclimate to room 

temperature for 20 minutes prior to taking a measurement.

8.   As the forehead temperature may be affected by sweat, oil and the 

surrounding temperature, the reading shall be taken as a reference only.

APPEARANCE AND KEY FUNCTIONS

HOW TO USE

INSTALL BATTERY

1.   Remove battery cover by pressing down at the arrow mark and slide in the 

direction of the arrow (Figure 1). 

2.   Install (2) AAA alkaline batteries and close the battery cover (Figure 2).

3.   If thermometer will be stored without use, remove batteries.

Warning:

Make sure the battery cover is properly closed and secured.

MEASURING TEMPERATURES-ADULTS

(older than 36 months)

1.   Remove protective cap. The forehead should be clear of hair and 

perspiration.

2.   Aim at the center forehead area 3 to 7cm (1” to 2.5”) away from skin 

surface. Be sure the thermometer is perpendicular to the skin surface.

1

Temperature display
Error message
Memory mode
Hold Symbol
Temperature unit
Battery indicator 
Adult body temperature indicator
Child body temperature indicator
Object surface temperature indicator

2
3
4
5
6
7
8
9

6

7

8

9

3

4

2

1

5

( Figure 1 )

( Figure 2 )

3.   Press and release the SCAN button to take a measurement. A double 

“beep” sound indicates a reading has been taken and displayed on the 

LCD screen.

When a reading is greater than 38.0°C, a warning symbol will flash.

4.   To take another measurement, follow step 2 and 3.

5.   The thermometer turns off automatically after 30 seconds. Replace the 

sensory cap when finished.

NOTE:

• If the reading is ≤ 31.9°C (89.5°F), the display will show “Lo”.

• If the reading is ≥ 43.1°C (109.5°F), the display will show “Hi”.

MEASURING TEMPERATURES-CHILDREN

(younger than 36 months)

1.   Press the SCAN button to turn on the thermometer. 

2.   Press and hold the MODE button for 1 second before releasing. An adult 

facial profile should be flashing, indicating that the preset mode is for 

adults. 

3.   Press the MODE key to switch to Child mode, indicated by a smiley face 

icon.

5.   The thermometer automatically switches off when left idle for 30 seconds.

6.   Replace the sensor cap when finished.

NOTE:

• If the reading is ≤ 31.9°C (89.5°F), the display will show “Lo”.

• If the reading is ≥ 43.1°C (109.5°F), the display will show “Hi”. 

MEASURING TEMPERATURES-SURFACE

1.   Press the SCAN button to turn on the thermometer. 

2.   Press and hold the MODE button for 1 second before releasing. An adult 

facial profile should be flashing, indicating that the preset mode is for 

adults.

3.   Press the MODE key to switch to Surface mode, indicated by a 

thermometer icon.

4.   Aim the scanner at the center of the child’s forehead 3 to 7cm (1” to 2.5”) 

away from skin surface. Press and release the SCAN button to take a 

measurement. A warning symbol indicates a reading greater than 37.6 °C 

(99.7°F).

4.   Press the SCAN button. Make sure the probe is flat and close to the object 

surface, not at an angle. Perform an object measurement with a distance 

within 5 cm (1.9 inch). Press and hold the SCAN button as you move the 

meter along the surface. The HOLD symbol will be flashing.

CHANGING UNIT OF MEASUREMENT

1.   With the thermometer off, press and hold the MODE button for 1 second. 

The current unit of measurement will be flashing. The default setting is in 

°C. 

2.   Press the MODE button again to make a switch in the unit of 

measurement. 

3.   When finished, press the SCAN button to turn off the thermometer. The 

thermometer switches off automatically when left idle for 30 seconds.

HINTS ON TAKING TEMPERATURES

1.   As with other thermometers, you may observe slight variations in 

consecutive measurements. It is recommended that you take 3 

temperature readings and use the highest one for the following situations:

■ Infants younger than 3 months old.

■ Children younger than 3 years old and who have a compromised 

immune system and the presence / absence of fever is critical.

■ When you are learning to use the thermometer.

2.   Do not take a reading while the person is moving and / or talking. Wait 30 

minutes after any of the following situations before taking a measurement:

■ When the forehead has been covered.

■ After the person has been exercising, swimming, or taking a bath.

■ When the person has been exposed to extreme temperature.

RECALLING PAST READINGS

The IR42 stores 30 most recent readings.

1.   Press and release the SCAN button to turn on the thermometer.

2.   Press and hold the MEMORY button for 1 second to enter the memory 

mode indicated by a flashing "      " symbol. The most recent reading stored 

will be displayed.

Body Site Normal Temperature Range

Oral

0.6°C (1°F) or more above or below 37°C (98.6°F)

Rectal / Ear

0.3°C to 0.6°C (0.5°F to 1°F) higher than oral temperature

Axillary (armpit) 0.3°C to 0.6°C (0.5°F to 1°F) lower than oral temperature

3.   Press and release the MEMORY button to cycle through older readings.

4.   When left idle for 30 seconds, the thermometer automatically switches off.

NOTE:

When the memory is full, the oldest result is deleted as the new ones are 

added. While recalling previous readings, you may take a measurement by 

pressing the SCAN button. 

NORMAL BODY TEMPERATURE & FEVER

Body temperature can vary from one individual/person to next. It also varies by 

location on the body and time of day. Fever indicates that the body 

temperature is higher than normal. This symptom may be caused by infection, 

overdressing or immunization. Some people may not experience fever even 

when they are ill. These include, but are not limited to, infants younger than 3 

months old, persons with compromised immune systems, persons taking 

antibiotics, steroids or antipyretics (aspirin, ibuprofen, acetaminophen), or 

persons with certain chronic illnesses.

Source: Body Temperature at WebMD; website: 

http://firstaid.webmd.com/body-temperature retrieved at 2010 Jan 7.

Please consult your physician if you are concerned about your body 

temperature readings. 

MAINTENANCE

• The IR42 has no user serviceable internal parts except battery replacement.

• Always replace Sensor Cap (or place in cradle) when not in use.

• Store in a dry location free of dust and away from direct sunlight.

• Use a soft dry cloth to clean the plastic housing or a cloth dampened with a 

solution of water and mild detergent. Occasionally, 70% isopropanol solution 

may be used. Never submerge in liquid.

• The sensor window is recessed to assist in keeping it clean and free of 

debris. Inspect the lens and remove any debris. Smudges may be cleaned by 

gently wiping the window with a small foam-tipped swab (non-lining) 

moistened with 70% alcohol. Wait 10 minutes prior to taking temperatures.

TaiDoc Technology Corporation

B1-7F, No. 127, Wugong 2nd Rd., Wugu Dist., 

24888  New Taipei City, Taiwan

www.taidoc.com

Distributed by

ForaCare Global Corp.

1F, No. 127, Wugong 2nd Rd., Wugu District, 

New Taipei City 24888, Taiwan

Tel: +886-2-66253345

Fax: +886-2-66259878

www.foracare.com

0123

5.   Release the button and read the result.

NOTE:

• If the reading is ≤ 0.0°C, the display will show “Lo”.

• If the reading is ≥ 100.1°C, the display will show “Hi”. 

1

Display Screen
Power / Scan Button
Probe Cover
Probe
Mode / Set Button
Memory Button
Battery Cover

2
3
4
5
6
7

MEMORY

SET  MORE

1

2

5
6

7

3
4

Reviews: