Q1: Does this model support multiple beam detector installation?A: Yes, it supports multiple beam detector installation, avoiding mutual interference between each beam.
Q2: Will the birds or pets trigger the alarm?
A: No. Birds and pet only blocks one beam. Only if the all beams are blocked, the detector will trigger the alarm.
Q3: Does the beam detector come with a pair? With any necessary accessories?
A: Yes, it comes a pair. Alarm with a pair of the brackets which beam detectors can be mounted to poles. In addition some screws and a screw driver.
Q4: How to Judge the beam detector was properly installed?
A: There is a signal strength LED display, showing 0 to 9. When the signal shows 9, it was perfectly installed. 7 or 8 means good signals. 5 or 6 means general. If the signals show 4 or under, please re-align.