Advantages of the TFA Dostmann radio weather station with rain gauge RAIN PRO: outdoor temperature, humidity and rain volume via transmitter indoor temperature and humidity. Weather forecast with symbols and air pressure tendency. Trend arrows, maximum and lowest values with time and date of storage. Adjustable alarm states for temperature, humidity and rain. Technical data: measuring range temperature outside: -40 °C + 60 °C. Material: plastic. Maximum range: plastic. Maximum range: 100 m transmitter included in box contents: 1 x 30.3249.02, 1 x 30.3233.01 (maximum quantity: 3 thermo-hygro-transmitters). Transmission frequency: 433 MHz. Measuring range indoor temperature: 0...+50 degrees C. Measuring range humidity inside: 10 99% Rain quantity: 0 mm Days: for hanging or standing. Radio-controlled clock can be switched off: yes. Power supply: batteries. Batteries: 7 x 1.5 V AA (not included). Dimensions: (L) 174 x (W) 33 (84) x (H) 162 mm. Weight: 269 g. Box contents: base station, thermal hygrotransmitter, rain gauge, instruction manual (English language not guaranteed). The family business TFA Dostmann with headquartered in Wertheim am Main. Special measuring technology special measuring technology measuring technology. alized. It is one of the industry leaders and has already launched over 1000 products around the topics of weather, temperature, humidity and time keeping.