About This High-precision 5-in-1 wireless weather sensor accurately measures the temperature, humidity, wind speed, wind direction and rain Maximum ambient temperature accuracy with an internal fan powered by two solar panels. Temperature range -40 to 70 degrees celsius Sensor data is transmitted every 36 seconds using 433 MHz wireless signal up to 330 foot (100 meter) range Requires 4 AA alkaline or lithium batteries (Batteries not included) Compatible with AcuRite Access (sold separately) and any AcuRite 5-in-1 weather station display (sold separately; full list below) Overview Brand : AcuRite Recommended Uses For Product : Rain Specific Uses For Product : Humidity Power Source : Battery Powered Special Feature : Barometer, Thermometer, Hygrometer Material : Plastic Connectivity Technology : 433 MHz Number of Batteries : 4 AA batteries required. Style : Sensor Color : Dual Solar Panel