Banggood

ok devo provarlo

My sensor was well made with no soldering issues. It is easy to install (see pictures), and the adjustments work fine. The sensor makes no clicking noise, and is quite sensitive to small movements. It works through other materials (e.g. a thin wall). The casing is relatively small, so the sensor can be installed inside a lamp, although I am not sure if the sensor would work through a metal base of a lamp. Plastic and glass will be fine. The range is several meters. I recommend it and plan to buy some

it looks it will work well and long time. Thanks

good product work properly distance 5 to 7 M time 10sec to 2.75min.

it works 6-7 meter and till 2.75 minutes very able. nice and good working.

good gadget for automatic light on with human existence.# # # #

I tested this unit. Lamp went on, but not off so thought the time delay was probably set to long time. I picked up the unit to adjust, even before adjusting anything the unit gave a loud bang and house circuit breaker tripped. I checked inside, the wiring is done extremely poor inside this specific unit. Not all parts of each wire were soldered, some were sticking out in various directions. Moving a cable caused short circuit inside. Unsafe device, as those pieces of wire can also stick out of the

premier achat pour ce détecteur, livré rapidement, vérifier les brasures avant de connecter sur le secteur un léger collage de la plaque electronic n'est pas superflu , sans ça fonctionne a merveille

The order not yet received

It works fine despite it is a very small device. Inside there are 2 PCB's. First is about 15x15mm with the microwave oscillator and printed circular antenna and a light sensor. Under it the bigger PCB with RC bridge, to get 11.7v, and a transistor (or triac?) to drive the control. Also a SMD 7805 chip and other control chip hard to identify. PCB's are well designed and double sided with lots of small SMD components, I recommend open it before connecting. In my case, one of the cables had wires not