ECOELER3Way Occupancy Motion Sensor Light Switch, Neutral Wire Required, PIR Infrared Motion Activated Wall Switch with Adjustable Timer & Sensitivity, Title 24, UL Listed, White, 4Pack

I've installed a bunch of various motion sensor/vacancy sensor/occupancy sensor switches over a couple decades. These are right up there with the best of class at a much lower price point.Pros:Work as advertised - timer function, sensitivity adjustment, ambient light adjustment - I had none of the issues that other reviewers were commenting about (please read below for a possible cause)Can be wired in parallel - great for basement stairwell lighting and basement lighting to go on/off while any motion detectedOccupancy AND vacancy functions selectable - in the vacancy mode the switch has to be manually pressed to turn the light on and the motion sensor timeout will turn them off. I've never liked this function, but in California it is a Title 24 requirement. In the occupancy mode it operates like any 'normal' motion sensor - turns on when someone enters and turns off after the timeout when no movement detected.Cons:Clearly stated in the description this items NEEDS a neutral to operate correctly. If your wiring in the switch box does not have a white neutral wire then you will not get this to work correctly (don't use the ground wire as a neutral if it is there) Some older wiring and even some newer wiring reidentifies the white neutral inside the switch box as a switched hot. While perfectly code compliant this will not work for these devices.The biggest revelation for my install was that when power is first applied, or after a power failure, these devices DO NOT behave like you might expect if you have used other motion sensor switches. After power is applied FOR THE FIRST TIME after installing or after a California power outage, these devices will turn the load on for about 15 seconds then turn off - and STAY OFF even though the little green light detects motion. One needs to press the button manually to turn the lights on. It works just fine after that. This cost the review one star.Lastly and this is pretty minor, the instructions are clearly written by ESL and have to be interpreted by the installer.Overall a really good product with a quirk or two

I bought this to replace one of a pair of standard 3-way switches controlling a laundry room light. Just be aware that the wiring on the remaining switch needs to be changed to support this switch. Pay close attention to the wiring diagram packed with this switch. It said to move the black "line" wire to the same terminal as the black traveler and then connect the common terminal to ground. I did move the "line" wire, but did not connect the common terminal to ground, and it works fine. Connecting the common to ground seems wrong to me. I like the fact that you can set the light sensitivity of this switch so it does not turn the light on when daylight is coming through the window. You can also set the amount of time before it automatically turns the light off. Plus, you can still turn the light on or off manually using either switch. This is a great buy since typical motion sensor 3-way switches run $20+.

I bought 10 pack 3 way switches, Installed by the manual. But it does not work.My wiring 100% correct. Double cheekedTried to swap travelers as well; still does not work.Tried 4 others switches from the same box still the same issueThat's really disappointing, There is no way you can call company who sell it. So my final attempt is to email them and after return it.Already wasted too much time on this-So they updated me with new wiring instructions which is completely different from what you see in the box. Attached hereBut now I faced new issues. Interference with my Kasa smart switch!My smart switch installed in the same electrical box / wiring 100% not related with smart switch; expect neutral and ground wires.So basically it turns on this switch because it detects wifi from smart switch even when you not using it.I’m 100% sure, because after long hours of troubleshooting, I wrapped up this switch with foil!!! and it stopped doing that. I also tested with my phone wifi next to the switch.I tried to off sensitivity or light detection, no changes.Unfortunately I can’t keep this switch wrapped up in the foil LOLTherefore not completely understand how come, it is heat detection sensor only? Or also part time works as smart switchIf this switch would work correct it would be great. Single location is fine I guess.

The switch was pretty straightforward, and I've installed a lot of light switches. Because of the wiring in my home, I had to improvise a bit, so it took me awhile to get it to work properly however, the major issue that I have is that it appears to have only two settings for how long it will stay on after it no longer detects motion: 3 nanoseconds or a fortnight.The switch has three dials with which you can make adjustments to its sensitivity, and how long it's supposed to stay on after motion detection stops. I hope mine is just defective and can be replaced, but if not, this is the dumbest design I've ever seen. There is a test mode which turns the switch off after about 5 Seconds, which is useful for testing the sensitivity location and range stuff, but then the rest of it is a dial that is supposed to be gradually increasing that amount of time up to 30 minutes. Unfortunately, mine appears to have no gradation at all and goes from just a couple of seconds, to five minutes. It's a micro-micro smidgen of difference. The pictures are included show the difference between 5 seconds and like 10 minutes in the dial on the left you can see how small a difference it is.As far as coverage area and detection goes, though, it is excellent. It really does truly cover the area that it says that it does, which is very good because in my application I was concerned that because the light switches in a corner of a rectangular room, and it's facing along the short side, the people in the other corner of the room would not be seen by it, but that part of it works really well. It's just this damned duration thing.

I knew this 3-way motion detector would not be very easy to install, but I got that alright, and it functioned as it should.However, I had to be within 5ft of the switch for it to 'see' me. And that was with the sensitivity set to the highest point.I'm in Canada, and to get it refunded/replaced I had to send it to California. I'm hoping I get the refund and mailing cost refunded! I will update this 'review' as to what happens.

Very frustrated with this product! not working properly, sometimes it works but mostly leaves me in the dark!Even you standing in the room, the light goes out!

compare with previous version. the detection indicator LED not easy to be seen.