3 Pack Motion Sensor Switch, PIR Sensor Smart Detection, 85-265V 40W, Ceiling or Wall Mount Smart Switch for LED Lamp, Bulb Light and More

Very compact, body is very short - threads on body for mounting allow less than 1/2 inch thickness ( elevator ceiling covering in my case ). There were no instructions - found wiring on U-Tube. Wiring colors were foreign to me. Good product, low cost.

Ok, I would have given this 5 stars, but the directions are crap. Someone had a photo in the reviews with an explanation of how to wire it up. I agree with another reviewer, I would have given 5 stars, if it came with directions. The sensor is great, very effective, as soon as I walk in the closet, the lights turn on. Would buy again.

It works ways better old styles hall way motion sensors. Quick responses and lights stay on for only 30 seconds after last motion detected. Save energy.

The good part is - it works. The not so good part is - you never know when the sensor will pick up the motion. It may do it in the midle of the day from a 10 foot distance or it may do in a total darkness from no more than 3 feet.

I could not get it to work. Wired one way the output ran continuously. Wired the other way, it didn't run at all. Both of these tested in complete darkness to make sure it wasn't a problem with ambient light. The wiring diagram shown doesn't make sense as a basic wiring schematic. I tested all three to make sure it wasn't just one non-working product. These are useless to me.

Ah the new age of cheap but fun and useful electronics! These types (PIR) detectors used to be very pricey and not of good quality but now they are nicely priced and better quality on top of that. So for the pros and cons of these and how to make them better. Of the pros is their excellent price! 3 for the price of 2 coffees so not bad at all. Easy to wire up with only 4 wires to deal with. 120 volt so not having to deal with voltage adapters or relays to use them with mains voltage. Very good pickup angles on them. Small, so they can be used in a lot more places.Now for the small negative side of them: They have a fixed time (about 30 seconds) and no way to make it longer or shorter. The only other issue is that they do not want to activate in a medium to bright light but there is a way to fix that. They are easy to open up as held in with two small tabs and then just pull the guts out. Once you have it opened up you can find the Photo Cell (see attached picture) on the circuit board and black it out to make it think that it is in darkness. A black Sharpie will NOT work to cover it so you must use dark paint or something non transparent (like black silicone) to completely cover it so no light can get in on the top of sides. The limited amount of wattage that these can be used with is the only other thing that is not great about them but if needed you can go larger with a relay.

funciona muy bien

The media could not be loaded. For the money, you can’t beat it. That being said, the instructions consist of a diagram that doesn’t make sense, at least in the states and that’s why I gave it 4 stars. So I went on YouTube and screenshot a diagram that is a lot more clear how to wire it and I included it. In addition, a 20mm hole is required so unless you have metric bits, 13/16 is the closest (you should drill a pilot hole first). I also included a video. I did have to wave in front of it though because it picked up the light from the kitchen. I tried recording it in the dark but the light from the cell phone made it not go off. I haven’t installed the other 2 yet but hopefully they work as well.