Wireless 433mhz PIR Sensor
There are 4 types for choice :
1 PCS ; 2 PCS ; 5 PCS ; 10 PCS .
All PIR Sensors don't include batteries.
1. PIR motion sensor detects motion movement, send 433mhz alarm signal to the alarm control panel.
2. After the alarm panel receives the 433mhz alarm signal from PIR motion sensor, it will drive siren sound loudly, at same time, push alarm message to user's phone automatically.
Note: The PIR motion sensor can't work standalone. It need to link with an alarm panel via 433mhz frequency. Please make sure your alarm control panel can be compatible with the specification of PIR motion sensor ( wireless frequency 433mhz, chip code: 1527) before buy.