1. Supports mobile app control of intelligent linkage devices via Zigbee technology. The temperature and humidity sensor is compact, lightweight, easy to use and portable, enabling seamless integration into smart home environments. 2. Smart linkage capability with real-time monitoring of temperature and humidity changes 3. Emergency alert notifications for abnormal temperature and humidity levels 4. Historical data tracking 5. Long battery standby time Product Name: Tuya Zigbee Temperature and Humidity Sensor Communication: Zigbee Power Supply: CR2450 button battery Operating Temperature Range and Accuracy: -20C to 50C 0.3C Operating Humidity Range and Accuracy: 0%100% RH (non-condensing) 3% Note: Variations in appearance, color, and printed markings may occur between batches, but do not affect performance Color: White Material: ABS Dimensions: 40 x 13 mm Package Contents: 1 x Zigbee Temperature and Humidity Sensor 1 x Card Removal Pin 1 x Adhesive Backing 1 x English Manual Note: The package includes only the items listed above. Light reflection and screen differences may cause slight color variations between the image and the actual product. Measurement error tolerance: 13 cm.