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Please read these instructions carefully before using this thermometer 
and keep both in a safe place.

2. Important Safety Instructions

This instrument may only be used for the purposes described in this booklet. The 
manufacturer cannot be held liable for damage caused by incorrect application.

Never immerse this instrument in water or other liquids. For cleaning 
please follow the instructions in the «Care and Cleaning» section.

•  

Do not

 use the instrument if there are any signs of damage. 

Do not 

attempt 

to repair the instrument.

•  Earwax in the ear canal may cause a lower temperature reading, therefore it 

is important to ensure the user’s ear canal is clean.

•  If the measurement result is not consistent with the user’s finding or 

suspiciously low, repeat the measurement every 15 minutes or double check 
the result by another core body temperature measurement.

•  This thermometer consists of high quality precision parts.

 Do not

 drop this 

instrument. Protect it from severe impact and shock.

•  Keep the thermometer away from direct exposure to the sun and keep it in a 

dust-free dry area.

•  If the instrument is not going to be used for a prolonged period of time the 

battery should be removed.

•  Battery cover should be installed correctly before use to avoid potential risk 

of electric shock.

 WARNING:

•  Use of this thermometer is not intended as a substitute for consultation with 

your physician.

•  Ensure that children do not use the instrument unsupervised; some parts are 

small enough to be swallowed.

•  It is not recommended to use infrared thermometers on children under 2 

years of age.

•  Infrared thermometers should not be used to manage important health 

concerns, and therefore parents should not rely solely on temperature 
readings to evaluate the status of your child’s health. If you have any 
concerns, consult with your doctor.

•  Using the unit in the immediate vicinity of mobile phones, microwave 

appliances or other devices with strong electromagnetic fields may result in 
impaired functioning.

Summary of Contents for Diagnostics halo 235DI

Page 1: ...1 SECOND EAR THERMOMETER Instruction Manual Model 235DI 1 18 2021...

Page 2: ...4 How this Thermometer Measures Temperature 5 Setting Date and Time 6 Directions for Use 7 Setting the Beeper 8 Fever Alarm 9 Changing Between Celsius and Fahrenheit 10 Memory Storage 11 Measuring Su...

Page 3: ...bath Ambient temperature Measurement in 1 Second The innovative infrared technology allows measurement of ear temperature in only 1 second Multiple Reading Recall Users will be able to recall the last...

Page 4: ...quality precision parts Do not drop this instrument Protect it from severe impact and shock Keep the thermometer away from direct exposure to the sun and keep it in a dust free dry area If the instru...

Page 5: ...e Measurements taken from the surrounding tissue of the ear canal generate lower readings and may result in misdiagnosis of fever 5 Setting Date And Time 1 When using the Ear Thermometer for the first...

Page 6: ...rmometer on by pressing the button all segments of the screen will be shown for 1 second and one beep is heard Figure 1 1 When the thermometer is ready to take a reading the C or F icon will be flashi...

Page 7: ...mory icon M will flash Figure 4 Reading 1 the last reading Press and release the M button to recall the last reading Number 1 and a flashing M are displayed Figure 5 The last reading displays the date...

Page 8: ...fter each use A build up of ear wax on the lens reduces the infrared picked up by the sensor which can result in lower temperatures Ear wax is also acidic and can corrode the lens of the thermometer i...

Page 9: ...40 0 C 104 0 F Ambient temperature too low Displays L when ambient temperature is lower than 10 0 C 50 0 F Error function display The system has a malfunction Blank display Check if the battery has be...

Page 10: ...he display light will be GREEN for 5 seconds when a measurement is completed with a reading less than 37 5 C 99 5 F The display light will be RED for 5 seconds when a measurement is completed with a r...

Page 11: ...Guarantee If at any time you are not completely satisfied with the performance of this device call our BIOS Medical Hotline and speak with a customer service representative who will make arrangements...

Page 12: ......

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