Owner’s Manual
Infrared Forehead Thermometer Model DET-306

Owner's Manual



The DET-306 infrared forehead thermometer is specifica1ly designed for safe use on the forehead. The Infrared Forehead Thermometer is a device capable ofmeasuring people’s body temperature by detecting the intensity of infrared light emitted from the forehead. It converts the measured heat into a temperature reading displayed on the LCD. Infrared Thermometer is intended for the intermittent measurement ofhuman body temperature by people ofall ages. When properly used, it will quickly assess your temperature in an accurate manner. “” Please read allinstructionscarefullyand thoroughly \..i,/1 before using this product.

  1. There is no gender or age limitation for using infrared forehead thermometer. This thermometer can be reused by many people.
  2. Use of this Forehead thermometer is not intended as a substitute for consultation with your physician.
  3. Do not allow children to take their temperatures unsupervised, some parts are small enough to be swallowed.
  4. Never immerse this device in water or other liquids(not waterproof).
  5. Do not modify this equipment without authorization of manufacturer.
  6. Do not expose the thermometer to temperature extremes (below -25’C/-13″F or over 55-C/131 “F) nor excessive humidity (>95%RH).
  7. Keep the battery away from children.
  8. Remove battery from the device when not in operation for a longtime.
Product Description
  1. Probe
  2. START Button
  3. Button
  4. Button
  5. Battery Cover
    Battery Cover
LCD Display Introduction

LCD Display Introduction

Basic Functions

Basic Functions

Forehead Thermometer Advantages

Infrared Forehead Thermometer measures core body temperature, which is the temperature of a body’s vital organs. (See Figure 1) This thermometer is designed to measure the temperature oftheskin  surface over the temporal artery, a major artery of the head. The temporal artery is connected to the heart via the carotid artery, directly leading from the aorta, the main trunk ofthe arterial system. It offers constant blood flow. Therefore, body temperature changes are reflected sooner in the forehead than they are in other parts of the body such as oral, rectal and underarm.


Real Time Clock Setting

When using thermometer for the first time, please set the parameters ofthe thermometer. With the thermometer off, press and hold BUTTONto enter into setting mode for 3 seconds.

Clock Setting

1.Set the time format The device can display the time in either an AM/PM (12-hour) or a24:00(24-hour) format. Press and release STARTBUTTON to select the format. With the preferred time format on the display, press BUTTON, the Hour figure is flashing automatically.


Clock Setting

2.Set the hour Press and release the START BUTTON to advance one hour until the correct hour appears. After the hour is set, press  BUTTON, the Minute figure is flashing automatically.




Clock Setting

3.Set the minute
Press and release the
START BUTTON to advance one minute until the correct minute appears. After the minute is set, press BUTTON, the Year figure is flashing automatically.



Clock Setting

4.Set the year Press and release the START BUTTON to advance one year until the correct year appears. After the year is set, press BUTTON, the Month figure will appear.



Clock Setting


5. Set the month Press and realase the START BUTTON to advance one month until the correct month appears. After the month is set, press BUTTON, the Date figure is flashing automatically.



Clock Setting

6. Set the date
Press and release the
STARTBUTTON to advance one day until the correct month appears. After the day is set, pressBUTTON to exit the setting mode.




Temperature Taking Hints

To ensure that the reading always reflects the body temperature accurately, you need to take account ofthe following factors which may affect an accurate reading.

  1. lt is important to know each individual’s normal temperature when they are well. This is the only way to accurately diagnose a fever. To determine normal temperature, take multiple readings when healthy. Re-measure with a standard digital thermometer for confirmation.
  2. Users must be inside for 30 minutes before taking a measurement.
    Note: Users and the thermometer should be in the same ambient
    temperature for at least 10 minutes before taking a reading.
  3. Users should not drink, eat, orbe physically active such as bathing, showering, shampooing and hair drying before/while taking the measurement. Remove hat and hair and wait 10 minutes before taking a reading.
  4. Oils or cosmetics on the forehead may give a lower temperature reading than the actual one. Remove dirt from the forehead before taking a measurement. Wait at least 10 minutes after washing the forehead area before taking a reading.
Temperature Taking Hints
  1.  Holding a hand on the forehead for any length oftime will affect the temperature reading.
  2. Do not take temperature over scar tissue, open sores or abrasions.
  3. Do not use the thermometer on a perspiring or sweating forehead, as this may affect the reading
  4. Don’t take a measurement while or immediately after nursing a baby.
  5. Do not use this thermometer outdoors.
  6. Do not take temperatures with this thermometer near places that are very hot, such as fireplaces and stoves.
  7. The probe window ofthe thermometer is the most delicate part ofthe device. Do not touch the probe window. The accuracy of the reading may be affected ifthe probe window is damaged or dirty.
  8. If the thermometer is stored in a significantly different environment than testing location, place it in the testing location for approximately 30 minutes prior to use.
  9. It is not intended for use in the oxygen rich environment or presence of flammable anesthetic mixture with air, oxygen or nitrous oxide.
Illustration For Use

To measure forehead temperature

  1. Press the  BUTTON, The display is activated to show all segments. After self-checking Figure 2 appears on the display screen with beeps, so you can start a new measurement.
  2. Aim the thermometer at the center of the forehead with a distance of 2 to 3 cm(See figure 3) and then press the START BUTTON.
    Note: Do not remove the thermometer from the forehead before hearing the final beep. A waiting period of 3 seconds between testing is recommended to ensure complete accuracy.
  3. Read the temperature on the display.
  4. Press the C!) BUTTONto turn off.
Illustration For Use

► After measurement:

  1. Power off: Device will automatically shut off ifleft idle for more than 1 minute to extend battery life.
  2. Clean the probe after each use to ensure an accurate reading and avoid cross contamination. (See the section of Care and Cleaning for details.)

► BackLight:
In Forehead mode:

  1. The display will be lighted GREEN for 3 seconds with a happy facewhen the unit is ready for measurement and a measurement is completed with a reading less than 37 .3 “C(99. l “F).
  2. The display will be lighted YELLOW for 3 seconds with a happy face when a measurement is completed with a reading less than 37.S’C(I00.0’F).
  3. The display will be lighted RED for 3 seconds with a bad facewhen a measurement is completed with a reading equal to or higher than 37.8’C(I00.0’F).

Temperature indicator:
In Forehead mode:

  1. lfthe temperature reading is below 37.8″C ( 100.0″F), a happy face will be displayed next to the reading.
  2. If the temperature reading is 37.8’C 000.0″F) or above, a bad facewill be displayed next to the reading.
Memory Mode
  1. The Memory Mode can be accessed ether in forehead mode or object mode: When the thermometer has been turned on and followed by Figure 2/4 or finished testing, press and hold the BUTTON for three seconds. The letter M will appear in the center right corner of the display. (See Figure 5)
  2. The thermometer will automatically memorize the last 10 temperature readings. Each memory also records the measurement date/time/mode icon. Each time the BUTTON is pressed, the screen displays past readings that correspond with a number 1-10. The number 1 reflects the most recent reading, while the number 10 reveals the oldest reading stored in memory,(See Figure 6)
  3. In the memory mode, mark or   mark always exist. The user can press the START BUTTON to take new measurements.
    Memory Mode
Selecting A Temperature Scale
  1. Temperature readings are available in the Celsius (‘C) or Fahrenheit (“F) scale.
  2. With the thermometer off, press and hold the START BUTTON for 3 seconds to enter into unit changing mode.
  3. Press and release START BUTTON to select the unit.
  4. When the preferred unit on the display, press© BUTTON to exit the unit changing mode.

Temperature Scale

Care And Cleaning
  1. The probe window must be kept clean, dry, and undamaged at all times to ensure accurate readings. The accuracy of temperature readings can be affected by damage to the probe window, or the presence of dirt, fingerprints, earwax, dust and other soiling compounds on the probe window. Degraded sensors can degrade performance or cause other problems.
  2. Periodic cleaning and disinfection of the device following in order to prevent patient cross infection. Please clean and disinfect the thermometer immediately after each use.
    For cleaning: 1 )Soak a clean soft cloth in drinking waler, wring ii out and then wipe the then no meter(including probe) no less than 3 times;
    2)Then use another clean soft cloth to wipe the residue water on thermometer;
    3)Put the thennometer in the original packaging. For disinfection:
    1 )Soak a clean soft cloth in drinking water, wring it out and then wipe the thermometer(includ.ing probe) no less than3 times;
    2)Thcn use another clean soft cloth to wipe the residue water on thcnnomctcr;
    3)Using a clean soft cloth dipped in 70% medical alcohol, wipe the probe 3 times, at least one minute for each time
    4 )Using a clean cotton swab dipped in 70% medical alcohol, wipe the sensor window 3times;
    5)Wait at least 10 minutes to let the alcohol volatilization and then put the thermometer in the original packaging
  3. Us e a soft, dry cloth to clean the thermometer display and exterior.
  4. The thermometer is not waterproof. Do not submerge the unit in water when cleaning.
  5. Store the thermometer in a dry location, free from dust and contamination and away from direct sunlight.
  6. Strong electromagnetic fields may interfere with the proper operation of the then no meter. The device needs special pre-cautions regarding EMC according to the EMC information.
  7. Put the thermometer back to the original packaging after using.
Battery Replacement
  1. Replace battery when” I):) “appears in the upper right corner of LCD display. (See Figure 8)
  2. Slide battery cover down as shown in Figure 9.
  3. Remove battery and install 2 new AAA alkaline batteries as shown in Figure 10 .
  4. Slide battery cover back on.

Battery Replacement

Figure 8

Battery Replacement

Figure 9

Battery Replacement

Figure 10









The thermometer is initially calibrated at the time of manufacture. If the thermometer is used according to the use instruction, periodic readjustment is not required. However, We recommends checking calibration every two years or whenever clinical accuracy of the thermometer is in question. Please send the complete device to the dealers or manufacturer.
The above recommendations do not supersede the legal requirements.
The user must always comply with legal requirements for the control of the measurement, functionality, and accuracy of the device which are required by the scope ofrelevant laws, directives or ordinances where the device is used.
A clinical summary and procedures for checking calibration are available upon request.(Turn on the thermometer and press the power button long time until entering into calibrate mode, software version will be displayed.)


The thermometer has a limited one year warranty. Do not attempt to disassemble or repair the thermometer by yourself. Should service be required during or after the warranty period you must contact the manufacturer. Repackage the thermometer carefully in its original packaging or securely pack to avoid damage during shipping. Include the original sales slip indicating the date of purchase, a note describing the problem, and your return address. Send the thermometer prepaid and insured. The lay operator or lay responsible organization should contact the manufacturer or the manufacturer1 s representative:
– for assistance, if needed, in setting up, using or maintaining the thermometer; or
– to report unexpected operation or events.

No.365, Wnzhou Rond, Yuhang EcOTiomic Development Zone, 3 l ll 00 H11ngzh011. , China
Telephone: +86-571-81957767
Fax: +86-571-81957750
Made in China


This appliance conforms to the following standards: ASTM El 965-98 Standard Specification for Infrared Thermometers for Intermittent Determination of Patient Temperature, ISO 80601-2-56 Medical electrical equipment-Part 2-56: Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement, JEC 60601-1-11 Medical electrical equipment-Part 1-11: General requirements for basic safety and essential performance -Collateral Standard: Requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment and complies with the requirements ofIEC 60601-l-2(EMC), AAMIANSI ES60601-l(Safety) standards. And the manufacturer is ISO 13485 certified.
Thermometer is warranted by manufacture to be free from defects in material and workmanship under normal use and service for a period of one year from the date of delivery to the first user who purchases the instrument. This warranty does not cover batteries, damage to the probe window, or damage to the instrument caused by misuse, negligence or accident, and extends to only to the first purchaser of the product.

FCC Information

Caution: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the distance between the equipment and the receiver.
– Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.

Electromagnetic Compatibility Information

The device satisfies the EMC requirements of the international standard IEC 60601-1-2. The requirements are satisfied under the conditions described in the table below. The device is an electrical medical product and is subject to special precautionary measures with regard to EMC which must be published in the instructions for use. Portable and mobile HF communications equipment can affect the device. Use of the unit in conjunction with non-approved accessories can affect the device negatively and alter the electromagnetic compatibility, The device should not be used directly adjacent to or between other electrical equipment.

Table 1



  1. The Use of this equipment adj11eent to or stacked with other equipment should be avoided because it could result in improper operation. If such use is necessary, this equipment and the other equipment should be observed to verify that they l!Ie operating normally.)
  2. Portable RF communications equipment (including peripherals such as antenna cables and ex.lernal anlennas) should be used no closer than 30 cm (12 inches) to any part of the [ME EQUIPMENT or ME SYSTEM], including cables specified by the manufacturer. Otherwise, degradation oftbe performance of this equipment could result.

Table 2
Table 3


Table 4






Join the Conversation


  1. My DET-306 backlight does not work. The online Owner’s Manual says it should. The Owner’s Manual that came in my box did not have that section printed. I was expecting the backlight to be able to use at night with my children. Now I have to turn on the light in the middle of the night to get the reading on the thermometer. Do not recommend this thermometer.

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