SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White - 3K74210212

Main Features:
● Ultra-low power magnetic dedicated microprocessor
● Supports wireless frequency of 433MHz
● 200m wireless transmit distance
● Built-in antenna provided
● Less than 1μA quiescent current
● The APP name is eWelink, can be downloaded by scanning the QR code in the maunal

Specifications:
● Support battery: 12V 23A AA battery ( not included )
● Wireless frequency: 433MHz
● Protocol: EV1527
● Operating environment: -10 - 50 Deg.C
● Size: sensor: 8 x 3.5 x 2cm, receiver: 7.5 x 2 x 1.5cm