THUSTAR 433MHz Burglar Alarm Sensor, Wireless Windows Doors Sensor, Work with Any 433MHz Home Security Alarm System for Home and Business (2 Pack)
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Product Features 433MHz Compatible: This wireless window/door sensor can work with any 433MHz home and business security alarm system , not just thustar security alarm system. How does window/door sensor work: Fix the window/door sensor to the door(2 side), and make