Sometime it might be interesting in exploring the different types of occupancy sensors. Some don't turn the lights on if you manually pushed the off button as you leave the space, others do, etc.
You also might mention that occupancy sensors also turn off ventilation fans which use electricity and exhaust condition air.
Very astute observations, Ray! Motion sensors generally have four modes of operation:
1) auto on, auto off (called occupancy mode)
2) manual on, auto off (called vacancy mode)
3) auto on, manual off (rarely used)
4) manual on, manual off (disabled mode)
Also, a good bathroom fan will have separate controls for the light and the fan, so the light can go off to save energy, but the fan stays on to manage humidity.
Sometime it might be interesting in exploring the different types of occupancy sensors. Some don't turn the lights on if you manually pushed the off button as you leave the space, others do, etc.
You also might mention that occupancy sensors also turn off ventilation fans which use electricity and exhaust condition air.
Very astute observations, Ray! Motion sensors generally have four modes of operation:
1) auto on, auto off (called occupancy mode)
2) manual on, auto off (called vacancy mode)
3) auto on, manual off (rarely used)
4) manual on, manual off (disabled mode)
Also, a good bathroom fan will have separate controls for the light and the fan, so the light can go off to save energy, but the fan stays on to manage humidity.