Occupancy Sensors

Occupancy Sensors

In many places of work, or areas with erratic occupancy, lights are needlessly left on when rooms are unoccupied.  Occupancy sensors work by using infra-red to detect the presence of people and then switch the lights off when the room empties and lighting is not required. 

These occupancy and vacancy sensors reduce energy consumption in building spaces by automatically shutting off the lights during periods of non-use.  You never have to worry about turning on or off the lights.  The sensors will automatically turn them on and off when you enter or exit a restroom, a classroom, a conference room, a hallway, or your office. Using occupancy and vacancy sensors can eliminate between 20 and 80% of lighting energy costs. 

To make sure that the PIR detector does not plunge rooms into darkness, it is important to ensure the whole area requiring light is covered.  For example the “zone” covered by a single PIR is 5 metres diameter strong detection with a 7 metre secondary detection zone which will detect a person walking into or out of the area.

Occupancy sensors are "application-sensitive" devices, meaning that most problems in the field are the result of misapplication. When considering occupancy sensors you should take into account the following.

  • Occupancy patterns
  • Conditions that will result in false triggering
  • Switching’s effect on lamp life.

Evolving Technology

Manufacturers are constantly researching and developing new technologies that will improve many aspects of performance such as adjusting sensitivity automatically and being resistant to false triggering due to airflow, coverage fluctuations due to temperature and humidity and blackouts caused by coverage gaps.

Every manufacturer wants to be the best and build additional value into their products.  We as consumers can only benefit from their findings and innovative design improvements.

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  1. GEFL Flush PIR Occupancy Sensor CP Electronic...

    Model: GEFL
    £19.49inc VAT £16.24 ex VAT
    In stock
  2. GESM Surface PIR Occupancy Sensor IP54 CP Ele...

    Model: GESM
    £21.04inc VAT £17.53 ex VAT
    In stock
  3. GIMB Batten Miniature PIR Occupancy Sensor IP...

    Model: GIMB
    £33.14inc VAT £27.62 ex VAT
    In stock
  4. GIPDC PIR Occupancy Sensor Switch CP Electron...

    Model: GIPDC
    £46.80inc VAT £39.00 ex VAT
    Fastlec5 Days Delivery
  5. Low Profile Push Button Flush Mounted Ceiling...

    Model: GEFL-PB
    £34.74inc VAT £28.95 ex VAT
    In stock
  6. PDS-PRM Wall MTD PIR Occupancy Sensor Screwle...

    Model: PDS-PRM
    £46.50inc VAT £38.75 ex VAT
    In stock
  7. PDS-PRM/S Wall MTD PIR Occupancy Sensor CP El...

    Model: PDS-PRM/S
    £47.28inc VAT £39.40 ex VAT
    In stock
  8. Steinel BLS D Auto Dimmable Occupancy Sensor

    Model: 720513
    £109.16inc VAT £90.97 ex VAT
    Fastlec2 Days Delivery
  9. Steinel HF3360 Occupancy Sensor White

    Model: 753016
    £77.46inc VAT £64.55 ex VAT
    Fastlec2 Days Delivery
  10. Steinel IS2360 Ceiling Mounted Occupancy Sens...

    Model: 6556
    £39.98inc VAT £33.32 ex VAT
    Fastlec2 Days Delivery
  11. Steinel IS3180 Stainless Steel Effect Occupan...

    Model: 606312
    £75.60inc VAT £63.00 ex VAT
    Fastlec2 Days Delivery
  12. Steinel IS3180/HF3360/NM5000 Corner Bracket B...

    Model: 648015
    £9.00inc VAT £7.50 ex VAT
    Fastlec2 Days Delivery
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