Techno Line WT268 Mode D'emploi page 38

Temperature
1. Indoor temperature range: 0°C--50°C
2. Measurement cycle： 30 seconds
3. If temperature is higher than 50°C, it will show HH, if lower than
0°C, it will show LL
4. When alarm is ringing or RCC is receiving, the temperature is stop
detection
Precautions
This main unit is intended to be used only indoors.
Do not subject the unit to excessive force or shock.
Do not expose the unit to extreme temperatures, direct sunlight,
dust or humidity.
Do not immerse in water.