The 2GIG-GB1-345 Glass Break Detector is meant for use with the 2GIG Alarm System and is a fully supervised, tamper-protected,ceiling- or wall-mounted unit with 15 ft. maximum detection range, 360 degree maximum horizontal sensing angle, and dual-stage glass break detection.

Features:
Monitors for the sound of breaking glass
Two test LEDs
Dual shatter recognition technology
Lithium batteries with 5 years life
360deg. range
Tamper protected
Fully supervised