Glass Break Detector Transmitter, Operating Frequency 320.000 MHz, Transmission Range 500 ft, Compatible With SIMON/NX/CONCORD Series, Powered By (2) CR123A Batteries, For Use With Interlogix Receivers, Operating Temp. Range 23 Degrees to 131 Degrees F, Humidity Range 5 to 90 Percent, Battery Life 3 yr, Height 1.9 in, Diameter 4 5/8 in, Features Two Stage Detector Circuit, Includes Screws. This item has been restricted from sale in the following state (s): []