I agree in the example you gave where breaking the beam sets off an alarm that notifies the cops. However, something that rings a doorbell chime inside the house and/or triggers a driveway light is a different story. For me, the occasional false alarms aren't a big deal. Just from the convenience factor, it's nice to know the UPS driver is coming, and having my driveway light up when I come home after dark.papajohn1964 wrote:I wouldn't put a beam anywhere outside. They can be set off by dogs, cats, birds, grass being blown in the wind etc... You would have to run wiring out to it for power anyways so put a magnetic door contact on it instead.
I like both visible and hidden cameras, and for different reasons.