Sonoff ZigBee Door/Window Sensor SNZB-04P

• Monitoring Doors & Windows : Automatically turning on lights when a door is opened, triggering audible and visual alarms in case of unauthorized entry, and sending app notifications to keep you informed.
• Tamper Alert : Equipped with tamper-proof features ensures your peace of mind. You will receive App notifications on your phone if the sensor is tampered with.
• 5-Year Battery Life : Powered by CR2477 battery extends the battery life to over 5 years, eliminating concerns about frequent battery replacements.
• Zigbee 3.0 Compatible :  Seamlessly integrates with Zigbee hubs utilizing the Zigbee 3.0 protocol, such as  SONOFF NSPanel Pro, SONOFF iHost, SONOFF ZB Bridge Pro, SONOFF ZBDongle-E, and Echo Plus 2nd…
• Local Smart Scene : With Local smart scene, scene linkage between Zigbee devices can be executed normally as long as your Zigbee devices are powered on even if the network is disconnected.

Specifications

• Wireless connection  : Zigbee 3.0
• Installation distance  : ≤20mm
• Battery model  : CR2477(3V)
• Working temperature  : -10°C~60°C
• Working humidity  : 5-95%RH, non-condensing
• Casing material  : PC
• Net weight  : 33g
• Product dimension  : Transmitter (50.5x32x21.9mm) Magnet (27x12x12.4mm)