Tuya Zigbee/WiFi Smart Door Sensor Window Door Open Closed Detectors Smart Home
WiFi:802.11 b/g/n. Permanent magnet: 43 10 14mm. Alarm Current:≤130mA. 【Detect door/window status 】When the door/window is opened or closed,the device triggered and push notification to the phone. Size: Main body: 68 23 19mm.