Review on ๐ก USG Wired PIR Motion Detector Alarm with Built-In Alarm Out Timer, Pet Immune, NO/NC, 3/30s, 9-16V DC, 40ft Range, 110ยฐ H & 60ยฐ V by Brent Henderson
Works very well
I give 5 stars for price and performance. With this device, the installer can choose between normally open and normally open. That's important for some people like me. If you have a normally closed type, you depend on those contacts to work 24/7 for years. Any slight corrosion on the contacts will result in a false alarm. By using the normally open option (just swapping jumpers) I can't expect any false alarms when the unit is used in an unheated and possibly humid environment. Installed the same day I received it. I have no long-term performance report to report. By the way, it has other jumper settings that are very useful for custom installations.
- Pulse + adjustable sensitivity (set with jumper) ***** IF YOU ARE NOT SURE ABOUT THE CONNECTIONS, PLEASE CONSULT A PROFESSIONAL ALARM OR ELECTRICAL COMPANY HOW TO CONNECT THIS MOTION SENSOR TO YOUR EXISTING SYSTEM!
- Not as thick as others
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