I wanted an upgrade to a halloween prop I made. I purchased this in hopes it would work, which it did not. There's no way to adjust the length of time the sensor triggers the start and stop of whatever you're using it for. While it did work it did not work for my application. What did result me in not using it was how hot it got. I was afraid it could cause a short and catch fire. I removed it from my prop and threw it away as it was past my return window. I do not recommend this product for safety reasons.

Used to replace a faulty step light sensor in my RV. Liked being able to adjust both delay AND sensitivity. Has worked great so far.

Works reliably. Plug and play but you can change sensitivity and shutoff time by prying it open and turning some knobs.

i like this sensor. it works very well. MY issue is getting the timing and the sensitivity down to where i want it.
now on a side note again i wish that amazon had a multi rating system or multiple areas to rate this product in. i took that fifth star away only because the two settings are abit touchy. i would rather for my application the settings be more in a wider range. an example would be in increments of 5sec hash style marks for the time on, and for the sensitivity maybe in meter/feet or some other value. you dont even have to put that on the circuit board but in the drawings themselves. so you can match it to your needs quicker. so its more my issue then theirs.
the senor itself is tiny. say no bigger then a wooden match book or a "zippo" style lighter.
the sensor was used indoors in an enclosed semi open space aka my garage.
i would also like to see the leads be a tad bit longer but thats just for my porpoise. ;-) the idea would be to center the sensor in the room so that if you have multi entrances you can install it in away where it was tripped from either/any direction. but i might have a work around for that too.
the company that i purchased from sent me an email with a better diagram of the inside of the of the sensor. i liked that. they took the time to talk to send that with an updated picture/schematic.
they get five stars.
so BLUF,,,, get it learn how to adjust it and then well use it.
thanks!

I have this in line with my Hitlights LEDs inside my safe. It is confusing how to adjust it, you have to take the back cap off of it and there is no directions that explain that the cap has to come off. I was trying to stick stuff inside the little holes and I'm an electrical engineer that got stymied by this little cheap PIR sensor! It works awesome, very repeatable. Every time I open the door it comes on right away and I spied on it through the crack and made sure it turns off after 2 min. I'm going to install one I my pantry next. Awesome little product and plugs right into the higlights lights in series.