How to use:
At the recommended installation height of 2.1 meter (7ft.) to 2.7 meter (9ft.) ±10%, Digigard 55 provided full coverage from 1.2 meter (4ft.) to 12 meter (40ft.)
Avoid placing the detector in close proximity to the following source of interference, reflective surface, direct air flow from vents, fans, windows, source of steam or oil vapor, infrared light source and objects causing temperature changes such as heaters, refrigerators and ovens.