crwdns2934241:0crwdne2934241:0 bill

crwdns2934249:0crwdne2934249:0:

The sensor LED is not visible. Take a camera, your smart phone will do, and look at the LED with that. You will see a purplish red light.

This works for remotes also.

If not, then it is broken and could be anything.

crwdns2915684:0crwdne2915684:0:

open