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Operating Instructions 

 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 

 

 Specifications 

Temperature taking 

 

Place the 
Probe Cover 

 
 
 
 
 
 
 
 
 

1. Place the probe cover on the probe cover fixer(inside of 

the storage box). Make sure to place the “

Adhesive Side

” 

of probe cover “

Upward

.”  

Align the probe with the center of the probe cover.     

2. Insert the probe into the probe cover fixer (in the storage 

box) until you feel a “click”. That means the probe cover 
has been connected firmly. 

     

1. Proper installation of the probe cover and using the       

            specific probe cover ensure accurate measurements. 

        2.

 

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.

 

 

 

If the probe cover did not install well, 

  will flash on the 

LCD screen and can’t take the ear temperature (will hear 4 
beep sounds without reading shown on the LCD when 
measuring).  

Please check the setting of the probe cover again. 

Power On

 

① 

 

② 

 

① 

Press 

 

“ON/MEM” button (on the left side) 

② 

See the 

  icon on the LCD and hear two beep sounds 

Taking Ear 
Temperature 

 

Gently pull the ear back to straighten the ear canal and 
snugly position the probe into the ear canal, aiming towards 
the membrane of the eardrum to obtain an accurate reading. 

 

 

<For children under 2 years old> 
  Pull the ear straight back.   
<For children over 2 years old and adults> 
  Pull the ear straight up and back. 

Measuring

 

 

 

Press “Scan” button 
(on the right side)

 

Press the “Scan” button for 1 second until you hear a long 
beep sound. The measurement is completed. You can read 
the result from LCD. After two short beeps are heard, the   
icon stops flashing to be ready for next measurement. 

Fever Indication :   

If the thermometer detects a body temperature

 

 

37.5°C (99.5°F), three short beep sound will follow one long

beep sound to warn the user for potential fever. 

Power Off

 

Automatically shut down after 1 minute pending to extend battery life. 

Attentions 

a. 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. 

b.

 

Before the measurement, the subject should stay in a stable environment for 5mins and avoid the exercise, bath for 

30mins.  

c. It is recommended that you measure the same ear for 3 times. If the 3 measurements are different, select the highest temp.. 
d.

 

The thermometer has been designed for home use. It’s not meant to replace a visit to the doctor. Please also remember to 

compare the measurement result to your regular body temp..

 

Please consult with doctor if you have health concerns. 

Other Functions 

 

Last Reading 

 

 

 

After getting a new body temperature, the last reading will be shown on the screen (at top right corner) 

with the 

  icon. 

Memory 
Locations   
(25 sets) 

 

When power on, press the “ON/MEM” button to see the temperature records with 

  icon. 

°C / °F Switch 

 

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

 

Temperature measurement range: 34~42.2°C (93.2~108°F) 

 

Operating temperature range: 10~40°C (50~104°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 

 

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

 

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

 

Fever indication & Memory, °C / °F Switch function 

 

Battery: one lithium cell battery (CR2032 *1pcs) 

 

Battery life: around 3,000 continuous readings. 

 

Expected Service Life: 4 years 

 

This thermometer

 is an adjusted mode thermometer that

 converts the ear temperature to display its “oral equivalent.”   

        (according to the result of the clinical evaluation to get the offset value) 

 

E:LED Backlight (optional), LED Backlight will be automatically turned on after measurement, and automatically turned off after 5 seconds. 

 

Enclosure Rating: IP22 

 

Dimensions: 120.4 x 37.8 x 40.3 mm 

 

Weight: 57.7 grams including battery 

 

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. 

 

TH709L(E) Infrared Ear Thermometer Operating Instructions

 

Intended use: 

The ear thermometer is electronic thermometer using an infrared detector (thermopile detector) to detect body temperature from ear   

           canal in people of all ages.

 

Intended operator: 

Have eight years of education,

 no maximum.

 

 

2 years

0 – 2 years

 

 

 

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