Interlogix Glassbreak Shock Detector, Brown (5150M)

this is a UTC or GE inner logics 60 - 873 glass break removing the front cover is easily done by removing it with your two thumbs in the rectangular Center point and then pulling out on the outer edges let's see two lithium batteries inside there is a microphone and a red LED which will illuminate when your either snap your fingers close to the microphone or clapping your hands of course as well in the vicinity of the device front cover is removed again by putting two thumbs right on that rectangular portion in the center and pulling on the outer edges once you have the unit off you see there are two part number 123 lithium batteries these can be obtained at most of your convenience stores drugstores and department stores make sure of course that you note that the positive is on the inner point both pointing towards center and inserting the batteries and properly when you're done is ver