Features: 100% brand new and high quality. This sensor is only used in the FanJu weather station. Please purchase it with caution! FanJu weather station itself has a wirele sensor and does not need to be purchased separately. FanJu 3378 weather station supports up to 3 wirele sensors. Wall Mount or Table Stand One Wirele Thermo Sensor Included 433.92MHz RF transmitting frequency 60 meter transmiion range in an open area Specifications: Color: white Material: plastic Size: 96mm/3.78"50mm/1.97"34mm/1.34" Battery: 2AA (not included) Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 Temperature Humidity Wirele Sensor