FAQ - Troubleshooting the No-Touch Infrared Forehead Thermometer (PT3SBT)

If your iHealth No-Touch Infrared Forehead Thermometer (PT3SBT) is not working properly, here are some steps you can take to try and fix the issue.

Firmware reset

Take the Batteries out of the device and wait 60 seconds, then reinsert the batteries.

This performs a firmware reset on the device.

Cleaning the lens

Please make sure that the lens of the device is clean and free from debris.

Use a cotton swab soaked in 70% alcohol. Gently rub the lens and the metal conduit to remove all traces and dirt.

After cleaning the lens, please wait 30 minutes before measuring again.

Pictures and a video for cleaning the lens can be found here

Cleaning the lens

Invalid measurement screen

This screen means invalid measurement.

Possible reasons for measurement errors include:

1. Measurement distance is greater than 3cm (1.18in).
   Caution, do not keep the button pressed while approaching the thermometer from a distance of less than 3 cm. Place the thermometer at a distance from the forehead of less than 3 cm THEN press the button.
2. Environment temperature does not meet measurement requirements or there is an excessively high-temperature difference.
• Temperature: 15°C-40°C (59°F-104°F)
• Humidity: 15-85%RH
• Atmospheric pressure: 70~106kPa
3. Target temperature exceeds the measurement range (32°C to 42.9°C).

If your thermometer still does not show a measurement after following these instructions for measuring position and temperature differentials you may have received a defective thermometer.

Please contact support@ihealthlabs.com for a replacement if within the 365 day warranty period.

Inaccurate readings

If the results seem incorrect, please compare the measurement using a different thermometer, but keep in mind that:

An ear (tympanic) temperature is 0.5°F (0.3°C) to 1°F (0.6°C) higher than an oral temperature.

An armpit (axillary) temperature is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature.

A forehead (temporal) scanner is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature.

Please make sure that the thermometer is clean, the measurement position is correct and that there is no hair, sweat, or creams blocking the measurement site.

More measurement precautions can be found here

Caution (measurements)

Does not turn on

If your thermometer does not turn on, please try a new set of batteries and make sure that the batteries are oriented correctly.

The iHealth iHealth Non-Contact Infrared Forehead Thermometer (PT3) uses 2 x AAA batteries. Rechargeable batteries are not recommended for this device.

If your thermometer still does not turn on, please contact support@ihealthlabs.com for a replacement if within the 365 day warranty period.

All symbols flashing

When the thermometer's screen flashes with all of the symbols, the thermometer is defective.

Please contact support@ihealthlabs.com for a replacement if within the 365 day warranty period.

Troubleshooting

Problem	What it means	Solution
	Battery depleted	Replace old batteries with new ones
	Batteries have been installed with the wrong polarity Batteries are not installed properly	Take out the batteries and re-install them correctly.
	Unable to carry out measurement as current battery capacity is too low.	Replace the batteries.
	Measurement distance is too long Target temperature is beyond range of measurements 89.6℉ -109.2℉(32℃-42.9℃) Environment temperature either exceeds the design range 32℉ -104℉(0℃-40℃)or is unstable	Follow the instruction manual and repeat the measurements
	Current state: all symbols are flashing on the screen. The product is not usable.	Please contact customer services.
	Current battery capacity is too low.	Replace the battery as soon as possible.
The application cannot find the product.	There may be a problem with the Bluetooth connection	Restart the device. Turn off and turn on the Bluetooth of the smart device.

Body Temperature

• Body temperature varies from person to person and fluctuates during the course of the day. For this reason, it is suggested to know one's normal, 13 healthy forehead temperature to correctly determine the temperature.
• Body temperature runs approximately from 95.9°F to100°F(35.5℃-37.8℃). To determine if one has a fever, compare the temperature detected with the person's normal temperature. A rise over the reference body temperature of 1.8℉(1℃) or more is generally an indication of fever.
• Different measurement sites (rectal, axillary, oral, frontal, auricular) will give different readings. Therefore it is wrong to compare the measurement taken from different sites.
• The following are typical temperatures for adults, based on different measurement sites:
  

  Rectal	97.9℉-100.4℉	36.6℃ to 38℃
  Axillary	94.5℉-99.1℉	34.7℃ to 37.3℃
  Oral	95.9℉-99.5℉	35.5℃ to 37.5℃
  Auricular	96.4℉-100.4℉	35.8℃ to 38℃