DG55 – Dual Sensitivity PIR

DG55 is alarm motion detector based on Passive Infrared Detector – PIR in Malaysia. It detects movements of object within passive infrared. Dual element PIR sensor allows more sensitive motion detection.


Installation Manual

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.


Digigard 55
Sensor type
Dual element infrared
Sensor geometry
12 meter x 12 meter (40ft. x 40ft.)
Installation height
2.1 meter to 2.7 meter (7ft. to 9 ft.)
Operating temperature
-20°C to +50°C (-4°F to +122°F) UL/ULC. Tested to 0°C to +49°C (+32°F to +120°F)
Voltage input
Typically 11-16V DC
Current consumption
15mA maximum
2nd generation Fresnel lens, LODIFF®, segments
EMI / RFI immunity
10V/m rejection from 10MHz. to 1GHz.
Alarm output
From A relay 100mA / 28V DC, N.C. or optional from C relay 5A / 28V DC, N.C./N.O.
Anti tamper switch
150mA / 28V DC, N.C.
Walk speed
0.2m/s to 3.5m/s (0.6ft./s to 11.5ft./s)

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