Tuya Zigbee Smart Door Sensor – Door Open/Close Detector for Security Protection and Smart Home Control Input Voltage: DC 3V (2 x LR03 batteries) Battery: 2 x AAA (not included) Standby Current: 10 µA Alarming Current: 15 mA Low-Voltage Notification: 2.5 V Wireless Technology: Zigbee Transmission Frequency: 2.4 GHz Magnetic Detection Distance: 15 mm Operating Temperature: -10°C to 55°C Operating Humidity: Up to 90% RH Features: 1. Tuya Zigbee Door & Window Sensor – Requires a Tuya Zigbee Wireless Gateway Hub to operate with this sensor and other Zigbee smart devices. 2. Real-Time Remote Monitoring – Receive smartphone notifications when the door or window opens or closes. 3. Wide Application – Suitable for use in bedrooms, garages, bathrooms, gardens, and other indoor or outdoor locations. 4. Battery-Powered Design – Low-power consumption with low-battery reminder functionality. 5. Easy Installation – Includes double-sided tape for quick, tool-free mounting. Package Includes: 1 x Zigbee Door Sensor 1 x User Manual Note: This device requires a compatible Tuya Zigbee gateway to function.