Posted by a reviewer on Amazon

The only thing is i used it without a security system and the manual did not explain very clearly that the output is a relay without voltage

Posted by a reviewer on Amazon

On the output screw i then ran the wire to my buzzer and then ground on the buzzer went back to the ground terminal of the seco device

Posted by a reviewer on Amazon

Also the reason i installed this is i kept getting false alarms from the motion detection alarm from my security camera dvr

Posted by a reviewer on Amazon

Another had many false alarms on another driveway defender motion detector system

Posted by a reviewer on Amazon

With this photo beam detector so far there has been no false alarms

Posted by a reviewer on Amazon

The signal level which began to slowly drop off about two years ago just recently took a huge dive and now the detectors are constantly giving false trips

Posted by a reviewer on Amazon

Weve had some pretty heavy rain and i expected them to false at least once but they never did

Posted by a reviewer on Amazon

This past winter we had one of the heaviest snowfalls weve had in 20 years and i was certain these sensors would false but they never did