Wireless Door and Window Magnetic Sensor EV1527 Coding Mode RF 433MHz Suitable for Home Security Alarm System Burglar Alarm

NOTE:
1. This sensor can't be used independently;
2. It can work with all the alarm hosts in our store, such as PW-150, PG-103, PG-105, PG-106, PG-107, PG-505, etc.
3. It can work with all the alarm hosts as long as your host Frequency is 433mhz.