Wireless sensor for measuring temperature and relative humidity. Designed for GARNI 545 Line and GARNI 439 Line weather station. 3 channels 30m transmission range Splash proof Technical Designed for the GARNI 439 Line, GARNI 545 Line Temperature measurement range / tolerance -40 ° C to + 70 ° C ± 1 ° C, Resolution of temperature 0.1 ° C Rel. humidity measurement range / tolerance 20% to 95% ± 5% Resolution of rel. humidity measurement 1% Transmission frequency 433 MHz Signal range up to 60 m in open space Data transmission interval 69 s Number of Channels 3 Display Yes Power 2 x batteries type AA 1.5 V (pencil, not included) Overall dimensions 49 x 95 x 32 mm Weight 52 g (without batteries) Colour white Option to stand or hang up the sensor Yes Dimensions of the wireless sensor display 19 x 11 mm Size of digits 4 mm