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The PA-6612 is a novel approach to the issue of false alarms and pet tolerance in PIR motion detectors. Through the use of “Twin Dual-Element” mirror optic detectors, Takex has created a ceiling mount detector with no equal in the security industry.

The PA-6612 uses “non-linear” mirror adjustment technology, ensuring maximum performance over a given area on ceilings up to 4.0m. The secret to the amazing performance of the PA-6612 is in the way that the mirrors are adjusted in reference to each other. It is “non-linear”, meaning that as the detectors mounting height increases, the angle of separation of each lens decreases, thereby maintaining a steady “aspect ratio”.

Contrary to popular belief, it is not acceptable to fit a wall mount detector on a ceiling bracket above its recommended mounting height, and then adjust it to look down.  This will cause each layer of fingers to separate creating a virtual “dead zone” that will not detect movement. Twin PIR’s are not new but Twin-Mirror-Non-Linear PIR’s are. With “rock solid” performance, the PA-6612 offers installers the opportunity to virtually eliminate false alarms from the toughest of environments.


  • unique twin mirror and two twin pyro optics for high discriminating capability
  • accurately detects human intrusion whilst rejecting nuisance alarms from small animals
  • geared mirror array ensures maximum performance regardless of mounting height up to 4m
  • detachable base unit with snap-in/out sensor design for easy installation
  • photo MOSFET relay for silent operation
  • high RFI and EMI immunity



  • Specifications
  • Downloads

Model PA-6612E
Product type Passive infrared sensor
Detection system Passive infrared
Coverage Wide angle: 12m (40ft) max.
Sensitive zone 17 pairs (64)
Supply voltage 10.5 to 18VDC (non-polarity)
Current consumption 25mA max.
Alarm signal Dry contact (NO/NC selectable)
Reset: approx. 2 sec, 24V, 0.25A max.
(Protective resistor 3.3Ω)
Alarm memory Auto: 3 mins. flashing, 47 mins lighting
Manual: manual control
Alarm LED Red: blinking at warm-up
Lighting at alarm (LED disabled)
Memory LED Yellow: blinking at memory activated
lighting at memory indication
Adjustment Vertically: 19.5 degrees, Horizontally: 25 degrees 
Count changeover 1/2/3/4 changeover
Ambient temperature -15°C to +55°C (+5°F to +131°F)
Mounting position Indoor ceiling (wall mount with optional BCW-401)
Wiring connection Terminals on separate base unit
Weight 135g (4.7oz)
Appearance Body: ABS resin
Cover: PE resin
Accessory Tapping screw: 2pcs
Sensor locking screw: 1pc

Instruction Manual