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PIR Motion Detectors

Reggie Wriggle

Reggie Wriggle

New member
I need to install an alarm system and most come with PIR Motion Detectors. I think these are activated by movement and heat.

Does anyone know if a snake will set these off?
 
I'm not sure how well they "see" through glass. I know they are extremely sensitive to movement, but some cameras let you set the sensitivity to human-size. I feel like people say they aren't effective through glass because of the IR- so you can't mount a camera inside to protect it from the weather, and expect to see the yard. So might not see snakes through glass? Probably not?
 
The latest security lights I purchased were activated via a form of doppler radar, so it's possible something using that instead of IR differentials would work better with reptiles.
 
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