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Quick Overview:

REX sensor with selectable pattern width, 1.2m (single door) or 2.4m (double door) Designed for applications involving coverage at the threshold of a doorway, the PS-520E uses passive infra-red technology to detect the differential between a human body and the floor. It features several field selectable options and adjustments to make it the ideal choice for access control applications, door strike release, alarm system shunting and automatic door operation.


  • Mirror optics
  • Mounts up to 4m high
  • 12/24vac or 12/24vdc input
  • 2 x form C relays. Fail safe or Fail secure selectable
  • Adjustable sensitivity
  • Adjustable timer 0.25 to 60 seconds
  • Adjustable Coverage Area
  • Overhead or Wall mount capability
  • Dual Pyro for increased stability against external light
  • High immunity to RFI and other electrical noise
  • Suitable for Single or Double doors
  • Two "Heavy-Duty" Relay Outputs (up to 1A) for controlling Door Strikes and Magnetic Locks
  • Fail Safe/Fail Secure (selectable)
  • Compact Design
  • Model PS-520E
    Product type Request-to-Exit Door Sensor
    Detection system Passive Infrared
    Detection area Mounting height: 4m (13ft) max.
    Pattern: Single Door/Double Door (selectable)
    Adjustment: 8 steps (wall mount) / 5 steps (overhead mount)
    Sensitivity: adjustable
    Power supply
    12-24VDC (non polarity) or 12-24VAC (50Hz/60Hz)
    (when operated at AC20-24V, connect attached resistor)
    Power consumption 40mA or less/DC
    70mA or less/AC
    Output Dry contact relay 2c
    Operation: one shot
    Hold time: approx 0.25sec to 60sec (adjustable)
    Contact capacity: 30V(DC) 1A or less/125V (AC) 0.6A or less
    *selectable relay operation
    LED Green
    Operation: synchronous dry contact relay (LED disabled)
    Wiring connection Terminals
    Ambient temperature range -10°C to +50°C (+14°F to +122°F)
    Mounting position Wall, ceiling, on or under frame (indoor)
    Weight 170g (5.95oz)
    Appearance Cover: ABS resin
    Window: PE resin
    Accessories Tapping screw: 2pcs
    Resistor (82Ω, 3W): 1pc (connect when operated at AC20-24V)
    Cover locking screw: 1pc



    SKU 106-214
    Brand Ness
    Shipping Weight 0.5000kg
    Shipping Width 0.100m
    Shipping Height 0.100m
    Shipping Length 0.100m

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