Honeywell 5816WMWH - Wireless door/window transmitter

Ademco Honeywell 5816 Door and Window Transmitter. Wireless two-zone transmitter designed for door and window applications. Features a built-in magnetic reed switch, tamper protection, and a wired closed-circuit contact loop for external devices. Battery included. Requires one (1) 5899 magnet (sold separately). Compatible with Honeywell/Ademco security systems that support 5816 series transmitters.