Sonoff SNZB-04 Zigbee Wireless Smart Door/Window Sensor, Smart home,Voice control

SNZB-04 is a Zigbee low-power and intelligent security wireless door and window sensor, it is through the magnet and the transmitter is separated to trigger the transmitter. The transmitter sends a trigger message to the App in time. And can use hand-free Voice control and interacts with Alexa/Google Assistant, an excellent choice for monitoring home security in time or interacting with smart appliances in the home.