https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1465992#M27804 <P>Will the motion sensor on the Arlo Pro detect through a glass window?</P> Sat, 23 Dec 2017 18:50:29 GMT jrodz 2017-12-23T18:50:29Z https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1465992#M27804 <P>Will the motion sensor on the Arlo Pro detect through a glass window?</P> Sat, 23 Dec 2017 18:50:29 GMT https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1465992#M27804 jrodz 2017-12-23T18:50:29Z https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1466038#M27806 <P>Yes. &nbsp;As long as the glass is clean&nbsp;<img id="smileyhappy" class="emoticon emoticon-smileyhappy" src="https://community.arlo.com/i/smilies/16x16_smiley-happy.png" alt="Smiley Happy" title="Smiley Happy" /></P> Sat, 23 Dec 2017 19:26:52 GMT https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1466038#M27806 DOUBLEAPEX 2017-12-23T19:26:52Z https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1466085#M27810 <P>Actually, NO. Glass blocks the IR required for the PIR sensors to detect motion.</P> Sat, 23 Dec 2017 20:07:03 GMT https://community.arlo.com/t5/Arlo-Pro/Arlo-Pro-Motion-Detection/m-p/1466085#M27810 jguerdat 2017-12-23T20:07:03Z