The SONOFF SNZB-04P Door/Window Sensor is a simple-to-install wireless sensor. It can be used to detect the opening or closing of a door or window and alert you on your smartphone. It is battery-powered and has low power consumption, which means you won't need to charge it often.

 Kind
 Opening sensor
 Technology
 Zigbee 3.0
 Food
 Stack
 Energy consumption
 Weak
 Compatibility
 Smartphone
 Facility
 Simple
 Functionality
 Opening or closing detection