Specification: Item Type: Temperature Humidity Sensor Material: ABS Battery: 1 x CR2450 500mAh Button Cell (Included) Temperature Detection Range: ‑10℃ to 50℃ Temperature Detection Accuracy: ±3℃ Humidity Detection Range: 0% to 95% RH (non Condensing) Humidity Detection Accuracy: ±3% Wireless Protocol: for Zigbee Gross Weight: 27g/0.95oz Package List:1 x Temperature Humidity Sensor1 x Pin1 x Instruction Manual1 x Double Sided Adhesive Tape Features REAL TIME: Temperature humidity sensor real time intelligent program check, provide safe and intelligent service for your home. PUNCH FREE: smart temperature humidity sensor does not need to be punched, quick and easy to install, use double sided tape to stick to any place you like. INTELLIGENT CONTROL: Wireless temperature humidity sensor can sense the temperature and humidity, intelligent control of cold, warm, dry and wet, so that you are in a comfortable environment. BATTERY POWERED: Smart temperature humidity monitor is powered by battery (included), low power consumption, long battery life, long standby time. WIDELY APPLICABLE: Smart temperature humidity detector is widely used in various places, easy to install, lightweight and compact. Easy to set up and convenient to control.