I have a Sentrol/GE Interlogix RCR-PET motion detector in my system (Caddx NX-8) and anytime it detects motion it emits a little, annoying chirp. I've looked at the circuit board and can't determine what is emitting the chirp (there isn't a surface mount piezo speaker or anything) nor are there any jumpers to disable the chirp.
Can anyone offer any insight as to how I might be able to disable this chirp or possibly recommend another compatible brand of motion detector that doesn't chirp when tripped? I don't have any pets currently, but we may be getting a small dog at some point (daschund) so pet sensitivity may or may not be important depending on if the dog is caged when we're not there. Thanks in advance for all your help!