User:LonnaPinner6

Ceiling mount occupancy sensors have been is use for http://vinculacion.udla.edu.ec/forums/forum/ideas-y-vinculacion/ a very long time, to avoid wasting power by conserving lights shut off when no one is in the room. They have been developed in many different ways with varying expertise.

My blog post ... http://vinculacion.udla.edu.ec/forums/forum/ideas-y-vinculacion/