EG Optex.
I'm unclear, do microwave + ir detectors needs both triggers or either trigger ?
Are they better at handling false alarms or just more sensitive overall.
I've only used PIRs in the past, decent ones and no trouble. Now looking to site a detector that 'sees' the front door (and the post that drops nearby). IR shouldn't see the post, but microwave might.
I'm unclear, do microwave + ir detectors needs both triggers or either trigger ?
Are they better at handling false alarms or just more sensitive overall.
I've only used PIRs in the past, decent ones and no trouble. Now looking to site a detector that 'sees' the front door (and the post that drops nearby). IR shouldn't see the post, but microwave might.