The motion-sensor tag has no wiki summary.
1
vote
2answers
244 views
Can I use low voltage lights with a motion sensor?
I have installed and wired low voltage exterior lights. They required a transformer to bring the AC to 24 volts. I want them controlled by a motion sensor so before the transformer I installed a ...
3
votes
2answers
503 views
Motion sensing light triggered by fan on the same circuit
I have an inexpensive motion sensing light on the outside of my house, which is on the same circuit as a 120V thermostatically controlled duct fan that pulls warm house air into the space (it's an ...
0
votes
1answer
80 views
Are there outdoor formaldehyde detection systems available?
We have a nearby factory polluting air with formaldehyde and when the wind occasionaly brings it to us we sense the smell and are forced to close the windows to not let it in. When the wave subsides ...
5
votes
1answer
2k views
How can I replace multiple 3 way switches with motion sensors?
My tenants never turn the lights off in the stairwells of my 3 family house, so I'd like to replace all of the light switches with motion sensors. Here is a crude diagram of how this is set up now.
...
2
votes
1answer
95 views
What are the things to look out for when buying a motion detector?
I was looking at portable motion detector that can detect motion within 0 meter to 50 meter. It can either sound an alarm or flash light when it detect motion. So, what are the things that I need to ...
3
votes
1answer
2k views
How can I replace a 3-way light switch with a motion sensor?
I'm trying to replace one of the three-way light switches in my garage with a motion sensor. But I'm confused by the wires on the existing switch. I thought the hot wire goes to the black screw ...