Compact Recessed Passive Infrared Dimming Occupancy Detector


The ASENS-CPIR-PRO is a passive infrared occupancy detector ideally suited to controlling all types of switchable lighting. When movement is detected, the luminaires are switched on. When an area is no longer occupied, the luminaires will switch off after an adjustable period of time. The detector can be changed from presence to absence detection by using the external switch or the ASENS-CHSLCD.

The internal light sensor provides additional energy saving potential by integrating photocell holdoff. When an area is occupied, the lighting is only switched on when the level of natural light falls below a preset level.

The ASENS-CPIR-PRO has a two channel capability for use with both digital dimming and switched lighting loads. For example, in a classroom, the window row of luminaires can be dimmed down according to daylight detection and the rest of the luminaires are switched on and off only. Two input terminals can be used to manually override the dimming levels and override the luminaires on and off.

The functionality of the ASENS-CPIR-PRO is controlled by a number of parameters which can be accessed by the ASENS-CHSLCD or the ASENS-CHS5 handheld infrared remote controls.

Order Code




7m 2.8m


76 61 64


  • Avoid direct sunlight entering the detector
  • Do not install within 1m of forced air heating or ventilation
  • Do not install within 1m of any lighting
  • Do not fix to a vibrating surface
Supply Voltage230V AC 50Hz
Channel 1 Load10A fluorescent, low voltage, LED
Channel 2 LoadMaximum number of digital dimming ballasts = 10 (relay enabled)
Maximum number of digital dimming ballasts = 20 (relay disable)
Dimming output is not SELV, Mains rated cabling must be used.
Power ConsumptionOn = 625mW
Off = 807mW
TimeoutAdjustable 10sec to 30min
Light LevelLight to Dark
Terminal Capacity2.5mm²
MaterialFlame Retardant ABS Type 2
Temperature-10°C to 35°C
Humidity5% to 95% non-condensing
IP RatingIP40
Compliance and StandardsEMC-2004/108/EC
CE Marked


Wiring Diagram 1 : Switch And Dim Together

ASENS-CPIR-PRO Wiring Diagram

Switches the luminaires with occupancy and maintains illuminance, Dims and switches using the optional centre biased retractive switch.

Wiring Diagram 2 : Switch An Dim Separately

ASENS-CPIR-PRO Wiring Diagram

Switches both channels with occupancy, maintains illuminance, dims and switches the dimming channel using the optional switch 2. Switches the switching channel using the optional single position retractive switch 1.

Wiring Diagram 3 : Two Channel, Common Switch

ASENS-CPIR-PRO Wiring Diagram

Switches both channels with occpuancy. Maintains Illuminance, dims and switches the dimming channel using optional centre biased retractive switch.

Wiring Diagram 4 - Single Switch Only

ASENS-CPIR-PRO Wiring Diagram

Switches channel 1 only with occupancy, optional override switch. No dimming output.