https://community.arlo.com/t5/Arlo/Motion-detection-not-working-from-inside-to-outside/m-p/1546707#M51362 <P>The Arlo cameras work on PIR detection and WILL NOT work thru glass as glass blocks the IR the use to detect motion,</P> <P>( except the Q cams and Baby which use changes in the pixels; actual picture )</P> Sat, 07 Apr 2018 13:01:04 GMT TomMac 2018-04-07T13:01:04Z https://community.arlo.com/t5/Arlo/Motion-detection-not-working-from-inside-to-outside/m-p/1546674#M51361 I have put a camera on the inside of the house on window sill but it's not picking up any motion outside. Why does it not work through window ps I have had in the past swann cameras in exact same place and worked perfect Sat, 07 Apr 2018 11:26:54 GMT https://community.arlo.com/t5/Arlo/Motion-detection-not-working-from-inside-to-outside/m-p/1546674#M51361 Mohmoh 2018-04-07T11:26:54Z https://community.arlo.com/t5/Arlo/Motion-detection-not-working-from-inside-to-outside/m-p/1546707#M51362 <P>The Arlo cameras work on PIR detection and WILL NOT work thru glass as glass blocks the IR the use to detect motion,</P> <P>( except the Q cams and Baby which use changes in the pixels; actual picture )</P> Sat, 07 Apr 2018 13:01:04 GMT https://community.arlo.com/t5/Arlo/Motion-detection-not-working-from-inside-to-outside/m-p/1546707#M51362 TomMac 2018-04-07T13:01:04Z