Infrared Beam Sensor,1 Pair Single Photoelectric Detector Active IR Alarm Host for Security System

These work pretty awesome. They have their own spdt relay inside which you need to jump 12v power to. I purchased a piece 12v buzzer to go with it. Super loud chirp! Seems like most commenters have never wired a spdt relay before or even know how they work.

This is a great product for the price of it works well for what I needed added one to that front door and one at the back door with the doorbell with two separate rings.

I bought 2 of these, and both are having the same issue. The receivers only generate about 30mvdc to the output terminals when the relay is engaged, not enough to power the attached light/siren. There is 12vdc (2A) available at the power terminals (powers the light/siren with ease), but not enough power to the output terminals. The relays are working, just not getting enough juice thru.

Does what it's supposed to do

Excelente

The product indicates the power source but does not include the power source.

No matter what i try there's no power from the outputs.

worked for less than 2 monts