This sensor can detect the temperature and humidity in the environment in real time, and combines with other devices to implement intelligent application scenarios.Features:Real-time monitor the changes of temperature and humidity via your smartphone, the historical data can be stored in 30 days.Intelligent linkage, for instance, the air conditioner will work automatically when the detected temp. is too high.Compatible with Alexa and Google Assistant, freely control simply with the voice command.Comes with double-sided tape, no punching needed, just stick anywhere you want.Built-in precise sensors, achieving the real-time measurement more accurate and stable.Premium material with exquisite workmanship and compact size, makes it extremely space-saving and unobtrusive.Note: ZigBee hub shown in the pictures is NOT INCLUDED.Specifications:Material: ABS + Electronic ComponentsTemperature Detection Range: -10~50Temperature Detection Accuracy: 0.3Humidity Detection Range: 0%~95%RH (No Condensation)Humidity Detection Accuracy: 0.3%Wireless Protocol: ZigBeePower Supply: CR2032 Button Battery (NOT INCLUDED)Item Size: 37 * 11.6mm / 1.46 * 0.46inItem Weight: 12g / 0.4ozPackage Size: 3.8 * 3.8 * 1.2cm / 1.5 * 1.5 * 0.5inPackage Weight: 20g / 0.7ozPackage List:1 * Sensor1 * Pin1 * Double-sided Tape1 * Manual