The three beams are the key to not getting false alarms from leaves, rain, snow, blowing wind. Something solid has to “break” all three beams at once like a human, car or large animal (in my case a deer)
The three beams are the key to not getting false alarms from leaves, rain, snow, blowing wind. Something solid has to “break” all three beams at once like a human, car or large animal (in my case a deer)