Wireless exit door alarm device

Exit Door Alarm Device, Wireless, Polycarbonate, Diameter 5-1/2 In., Depth 2 In., Y Tone, Decibels 105 or 95, Signal Output Y, Frequency Range 433 mhz, 9 VDC, Wall Mounting, Polycarbonate Housing Material, Operating Temp. 32 to 120 Degrees F, Red Color, 1000 ft. Line of Sight Range Coverage, FCC and IC Compliant Standards, Includes Battery and Mounting Hardware, For Use With STI-34104 STI-34108 Wireless Alert Series