Viatom DT1 Electrical Thermometer User Manual


Viatom DT1 Electrical Thermometer User Manual


The Basics

This manual contains the instructions necessary to operate the product safely and in accordance with its function and intended use. Observance of this manual is a prerequisite for proper product performance and correct operation and ensures patient and operator safety.


  • Get medical attention if you have high fever or prolonged fever, especially young children. Read carefully and follow the instructions to ensure accurate temperature measurement.
  • Keep out of reach of unsupervised children.Components may be harmful if swallowed.
  •  This device is designed for oral, rectal, or axillary use only.
  • Please note that temperature measuring are affected by many factors, including strong physical activity before
    the test, drinking hot or cold drinks, and measurement methods.
  •  Avoid taking temperature for 30 minutes after physical exercise, bathing, dining, or drinking hot or cold
  •  Stop using the thermometer if it operates erratically or if the display malfunctions.
  •  Allow the thermometer to warm naturally to room temperature before using. Performance may be
    affected if operated or stored outside stated temperature and humidity ranges or if the patient’s
    temperature is below the ambient (room) temperature.
  • Precision components are used in the construction of this device. Extremes in temperature, humidity, direct sunlight, shock or dust should be avoided.
  • Clean the device with a dry, soft cloth or a cloth dampened with water and a neutral detergent. Never use alcohol, benzene, thinner or other harsh chemicals to clean the device .
  • Measurements may be distorted if the device is used close to television, microwave oven, cellular telephone, X-ray or other devices with strong electrical fields.


viatom-Checkme-Lite-Health-Monitor-image-4Application part type BF
CE0197In conformity with Directive 93/42/EEC
viatom-Checkme-Lite-Health-Monitor-image-6European Representative
Symbol for “ENVIRONMENT PROTECTION – Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist. Check with your local authority or retailer for recycling advice”.
IP22Against ingress of solid foreign objects ≥12.5mm

diameter; Against dripping (15° tilted)

viatom-Checkme-Lite-Health-Monitor-image-8Follow operating instructions

Screen display information


Using the thermometer

Charge the Battery
Use the USB cable to charge the product. Connect the USB cable to a USB charger or to the PC. There will be a battery logo flash on the device when charging. When the battery is low, the display screen will display a low power prompt.
Note: The device cannot be used during charging. When charging, you must use a class Ⅱ adapter conforming
to IEC/EN 60601-1, and the output is DC 5V 1A. If it is not followed, there may be a risk of electric shock.
3.2Before Measurement

  1.  Please long press the on key to start the product.
  2.  Display history
    The history record appears on the screen, indicating that the value is the last measured temperature.

Before measuring temperature, please clean the temperature measuring head with rubbing alcohol. Rinse it with cool water. The thermometer supports measuring the temperature of multiple body parts. For infants under 3 months old, it is recommended to measure rectal temperature. Please follow the below instructions.

Measuring oral temperature
  1.  With your mouth open, put the temperature-measuring head under your tongue.
  2. Close your lips gently around the thermometer.
  3. Keep the thermometer under your tongue until the digital thermometer beeps.

Lubricate the probe tip with a water-soluble jelly for easier insertion; do not use petroleum jelly,as it may cause an inaccurate reading. Gently insert the probe tip no more than 1/2 inch into the rectum.

After Measurement
When the buzzer emits a beep sound(Beep-short sound), it indicates that the temperature measurement is finished. The display “°C/℉” stops blinking, and the displayed temperature value is the result of the current body temperature.
When the temperature measured by the device is lower than 35℃or 95 ℉, the screen will display “LOW” with a beep-long sound. When the temperature measured by the device is higher than 41℃ or 105.8 ℉, the screen will display “HIGH” with a beep-long sound.

  • Turn off the thermometer: press and hold (> 0.5 seconds) to switch the thermometer off.
  •  If no operation is performed for more than 3 minutes, the thermometer will automatically turn off. It is
    recommended to manually turn off the thermometer after the temperature measurement to extend the
    battery life.

Cleaning and Disinfecting

Do not use a corrosive detergent to clean the unit. Clean and disinfect the thermometer before and after each
Cleaning Process

  1.  Wipe the probe with a cloth dipped in a disinfectant solution such as 70% isopropyl (rubbing) alcohol or soap and water.
  2. Rinse off disinfectant residue.

Care and Storage

  •  Do NOT drop or crush; this device is not shockproof.
  •  Do NOT dismantle or modify the device.
  •  Do NOT store the device in an extreme environment with direct sunlight or high temperatures.
  • Store the unit in the protective case while not in use.

Trouble Shooting

ProblemPossible CauseRecommended


Can not bootVery low batteryPlease charge it according to the


The ambient temperature exceeds 40 or below 5.Please use

within the working environment temperature

range (5-40)

The monitor cannot be connected to other devicesOther devices have Bluetooth turned offTurn on the device’s Bluetooth from the setting menu.
Other devices don’t support the Bluetooth 4.0 BLEChange to a compatible one.
Inaccurate measured valueThe temperature measuring

heads are placed in different

positions, resulting in different


Check whether the thermometer is placed in the correct position as described

in “Using the thermometer”.

The thermometer moves while measuring


The measured position is

not kept closed while the temperature measurement

is being performed.

The device has notMeasurements
been placed forshould be taken
more than 30before they are
minutes from theleft in the
colder environmentmeasuring
to the measuringenvironment for
environment.more than 30


The device has notMeasurements
been placed forshould be taken
more than 30before they are
minutes from theleft in the
environment to theenvironment for
measuringmore than 30
The measurementPlease use within
temperaturethe measuring
exceeds 43.9℃ ortemperature
below 30℃.range (30℃



540-00240-00MICRO USB charge cable



EC Directive

MDD, 93/42/EEC
RED, 2014/53/EU
ROHS 2.0, 2011/65/EU
Degree protection against electrical


Type BF
Temperature5 to 40°C-20 to 50°C
Relative humidity


15% to 85%15% to 85%
Barometric700 to 1060


700 to 1060 hPa
Degree of dust &

water resistance

Size160mm×22mm×10mm(main unit)
WeightLess than 30 g (main unit)


Built-in Bluetooth 5.0 BLE
Expected service


5 years
Power Supply
Charge inputMicro USB, DC5V
Battery typeRechargeable lithium-polymer battery
Battery lifeOperating:12-14hours for typical use

Storage:5 years

Charge time2~3 hours.
Temperature measurement


Direct mode
Measurement siteMouth,Axilla, Rectum


Mouth, Axilla,Rectum
Temperature UnitCelsius(℃)or Fahrenheit(℉)
Temperature range32.0 – 43.9℃(89.6-111.0℉)




Measurement accuracy

Less than 35.8℃, ±0.3℃.(Less than 96.4℉, ±0.5℉.)

35.8℃ to less than 37℃,±0.2℃.(96.4℉ to less than 98.0℉,±0.3℉.)

37.0℃ to 39.0℃, ±0.1℃.(98.0℉ to

102.0℉, ±0.2℉.)

Greater than 39.0℃ to 41.0℃,±0.2℃.(Greater than 102.0℉ to 106.0℉,±00.3℉.)



Bluetooth RF
Frequency range2.402 – 2.480 GHz
Max RF power-14 dBm


 Electromagnetic Compatibility

The device meets the requirements of EN 60601-1-2.

Warnings and Cautionary Advice

  •  Using accessories other than those specified in this manual may result in increased electromagnetic
    emission or decreased electromagnetic immunity of the equipment.
  • The device or its components should not be used adjacent to or stacked with other equipment.
  • The device needs special precautions regarding EMC and needs to be installed and put into service according
    to the EMC information provided below.
  •  Other devices may interfere with this device even though they meet the requirements of CISPR.
  •  When the inputted signal is below the minimum amplitude provided in technical specifications,
    erroneous measurements could result.
  •  Portable and mobile communication equipment may affect the performance of this device.
  •  Other devices that have RF transmitters or sources may affect this device (e.g. cell phones, PDAs, and PCs with
    wireless function).
Guidance and Declaration – Electromagnetic Emissions
The device is intended for use in the electromagnetic environment specified below. The customer or the user of the device should assure that it is used in such an


Emission testsCompliance


Electromagnetic environment


RF emissions CISPR 11Group 1The device uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.
RF emissions CISPR


Class BThe device is suitable for use in all establishments, including domestic establishments     and     those   directly

connected   to   the   public  low-voltage

Harmonic emissions


Class A

FCC Warning:

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference, and
  2.  this device must accept any interference received, including interference that may cause undesired operation.

Note: 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 and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. 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 to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation 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. The device has been evaluated to meet the general RF exposure requirements. The device can be used in portable exposure conditions without restriction.


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