14 votes
Accepted

What are the pros and cons on installing a typical garage floodlight kit, inside your garage?

The immediate issue I see is that a floodlight is not great for lighting a room. They cast harsh shadows, create a lot of glare if you look anywhere near their direction, and will leave plenty of ...
JPhi1618's user avatar
  • 27.9k
10 votes

What are the pros and cons on installing a typical garage floodlight kit, inside your garage?

Due to medical conditions I need lots of light and I don't due well with harsh direct lighting or shadows. For lots of light, I have often installed alternate 'outdoor' lighting inside. I even have a ...
Ack's user avatar
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6 votes
Accepted

motion sensor switch always on

So many wires, so little time... Instructions below, except as noted, apply generically to any similar motion sensor, dimmer, timer, smart switch, etc. For this specific switch, instructions should be ...
manassehkatz-Moving 2 Codidact's user avatar
5 votes
Accepted

How do I replace or repair a motion sensor PIR lens?

The item you are looking for is a PIR lens. These are typically sold in bulk, but now that you know the name of it, you should be able to google for one to purchase. An example one is here
cyclops's user avatar
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5 votes

Help wiring occupancy sensor

You used the wrong clamp, so the grounding path is broken The particular occupancy sensor you are using uses the rather ugly kludge of sending its operating current back "home" via the equipment ...
ThreePhaseEel's user avatar
5 votes

Lightswitch - Ground too short

TLDR: Leave the ground wires where they are! Let the switch pick up ground via its mounting screws. Don't fall for "Spare wire syndrome" Often, novices see a spliced group of, say, white ...
Harper - Reinstate Monica's user avatar
5 votes

Can I stop tenants from leaving their small, 1,500 electric oil-filled radiators ON while they are gone using an 'occupant sensor' control recepticle?

This is a legal mess First, you really, really need to review landlord-tenant law. Because your strategy is penny-wise/pound-foolish. You are presuming a right to do things that are totally illegal, ...
Harper - Reinstate Monica's user avatar
5 votes

Motion Sensors Don't Work Through Glass — Is There a Workaround?

The best way to protect a camera from people is with a dummy camera. Put the dummy camera exactly where everyone expects to see a camera. Put the real camera in concealment. Unfortunately most camera ...
Harper - Reinstate Monica's user avatar
5 votes

Help wiring a motion sensor switch

If you want a motion sensor on this three-way switch circuit you will need a three-way capable motion sensor switch. They exist, though they are rarer to find and more expensive. Note that per ...
KMJ's user avatar
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4 votes
Accepted

Reusing ADT motion sensors

First we must determine whether your motion sensors are wired or wireless. Wired The wired PIR motion sensors used in security systems since roughly forever are pretty simple devices. You feed them ...
Greg Hill's user avatar
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4 votes

Motion detector switch affected by heater?

Absolutely! Most motion sensors are IR (infrared) detectors and they can "see" heated air as it moves. If it moves fast enough it may trick the sensor into thinking that it's a human vs. just heated ...
jwh20's user avatar
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4 votes
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Occupancy sensor to turn off socket

You could combine a standard Occupancy Sensor: with a Relay: The Occ Sensor controls the relay, and you use the relay's Normally-Closed terminal to power your Outlet, something like this: So when ...
brhans's user avatar
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4 votes

motion sensor switch always on

You appear (to the extent I can decipher that paint-splattered mess) to have neutral in the box, and the joining of ground and neutral is definitely wrong. Most likely you connected the always-hot of ...
Ecnerwal's user avatar
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4 votes

Removing motion sensor from front porch light switch, now light won’t work

You needed to connect (the wires that were connected to) the motion sensor black and red wires at the motion sensor location (or rewire the light, but if you might replace the motion sensor that's the ...
Ecnerwal's user avatar
  • 214k
3 votes

How do I replace or repair a motion sensor PIR lens?

I cut a piece to size out of one of those plastic milk containers and it works just as well.
Ken's user avatar
  • 31
3 votes

Wireless Networked Sensor Light?

Yes, there are. Some speak the X10 carrier-current signalling protocol, some use more modern communications. Obviously you would need to buy compatible components. A good home-automation catalog or ...
keshlam's user avatar
  • 29k
3 votes

Motion sensor activates for no apparent reason

These units also detect heat changes. Make sure the HVAC vent isn't blowing warm or cool air onto the detector or into its view of the space.
Robert Cuminale's user avatar
3 votes

Motion sensor with bypass switch?

As I discuss in the answer you linked, that is fine. There are some minor glitches in your drawing, but nothing worrisome. Try / Wall switch +------0 0-----+ | ...
Harper - Reinstate Monica's user avatar
3 votes

Multiple motion sensor lights on one switch

Unfortunately many or even most of the motion sensor lights on the market are junk. At least that's been my experience. I have installed a bunch of these purchased at big box stores that just didn't ...
batsplatsterson's user avatar
3 votes
Accepted

lutron sensor switch - wiring help

Unfortunately, the Installation Guide doesn't say much. It shows the two black wires but does not have any indication as far as which one goes to hot vs. switched-hot. The implication is "it ...
manassehkatz-Moving 2 Codidact's user avatar
3 votes
Accepted

Help wiring occupancy sensor

Yeah. That old clamp wasn't perfect (one NM in a 3-AC clamp), but what you did there with the new clamp was a complete hork job. That clamp is made for 1 NM cable. You just spammed your 3 cables in ...
Harper - Reinstate Monica's user avatar
3 votes
Accepted

What is the typical vertical angle field of view for a PIR motion sensing light switch?

While it varies by the sensor, we can look at a good representative unit to get an idea You are right that different sensors will be somewhat different with regard to their view angles, both in the ...
ThreePhaseEel's user avatar
3 votes

What are the pros and cons on installing a typical garage floodlight kit, inside your garage?

I have one in the garage. It is great because when you walk into the garage a light comes on and you don't have to hunt for a switch. If you are just carrying laundry down or getting into the car it ...
Ross Millikan's user avatar
3 votes

Occupancy sensor to turn off socket

i used the following to make an "inverter" out of aftermarket code-friendly devices when i was renting and couldn't mod anything permanent: a cheap always-on LED nitelight and a screw-in ...
dandavis's user avatar
  • 2,232
3 votes

Why are the switches connected and each one has two black wires going to one terminal?

Switches need a connection to the always powered part of the circuit on one side of the switch and then the connection to the load (light or outlet or fan) of the other side. Often the live powered ...
Michael Karas's user avatar
  • 64.6k
3 votes

How to bypass motion detector on outdoor flood light

TL;DR Turn the switch ON. Wait ~15 seconds for it to turn off automatically. Then turn it OFF, ON, OFF, ON and the light will obey standard ON and OFF from the switch for the next 6 hours. From the ...
manassehkatz-Moving 2 Codidact's user avatar
2 votes

Can I use low voltage lights with a motion sensor?

The motion sensor needs to be hot 24x7. Motion sensors actually calibrate for the environment, and if you constantly sever power to them, they constantly are reset and have to start calibrating all ...
Harper - Reinstate Monica's user avatar
2 votes

How to shape the zone a radar motion sensor detects?

I know that that's an old thread but you can use the anti-static bag used in electronic: works like a charm for me. Regards
Davide Renon's user avatar
2 votes

How do I emulate an incandescent bulb?

So you need resistors with an ampacity comparable to incandescent lightbulbs... have you considered incandescent light bulbs? I know, but hear me out here - we run incandescent light bulbs at the ...
Zhentar's user avatar
  • 1,212
2 votes

"Power off" motion detector

This is pretty easy with a relay: Just be sure to size the relay appropriately for your load (I used a light but it could be anything).
gregmac's user avatar
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