Techno Line WL 1020 Manuel D'utilisation page 35

original EU declaration of conformity may be found at:
www.technoline.de/doc/4029665210209
Product Specifications
Humidity measurement range: 10%~95%
Humidity resolution: 1%
Temperature measurement range: -9.9~50°C, lower than -9.9°C
shows LL, higher than 50°C shows HH.
Temperature resolution: 0.1°C
TVOC detection range: 0 -- 9.999 mg/m3
CO2 eq detection range: 400-9999 PPM
Precautions

This item is intended to be used only indoors.

Do not subject the item to excessive force or shock.

Do not expose the item to extreme temperatures, direct
EN15