Sensor de Puerta o ventana ZigBee SNZB-04P SonOff

5 years battery life – SNZB-04P window and door contact thanks to the power supply via a CR2477 battery, the battery life is over 5 years, so you don’t have to worry about frequent battery changes.
Zigbee 3.0 compatible – This door window contact can be seamlessly integrated with Zigbee hubs that use the Zigbee 3.0 protocol, such as SONOFF ZBDongle Pro, SONOFF ZBDongle-E, SONOFF ZB Bridge-P, SONOFF iHost, SONOFF NSPanel Pro and Echo Plus 2nd..