Authorized Seco-Larm Reseller

Seco-Larm CS-PD438-PQ Infrared Proximity Sensor – 38mm, Stainless steel, Pack of 2

Seco-LarmSKU: CS-PD438-PQ

Sale price$92.40
Usually ships within 3-5 business days
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Call Us: 718-435-2800


ENFORCER IR Proximity Sensors are compact and can be programmed to unlock an electronic door lock when an object (such as a hand) is passed in front of the sensor or trigger an alarm when an object (such as a valuable possession) is removed from the sensing area. This flexibility makes ideal for both anti-theft and access control applications.

  • Access control: Mount the sensor to a wall or plate in a protected area. A user can wave a hand in front of the sensor to unlock an electric lock for no-touch, protected egress.
  • Anti-theft: Place the sensor under or behind a painting or other valuable object. If the object is removed, the sensor will trigger an alarm to alert the owner.

  • No-touch operation reduces the risk of spread of germs, viruses, etc., through cross-contamination
  • Adjustable sensor range up to 6″ (15cm) 1A relay, adjustable trigger duration 0.5~20 seconds or toggle
  • Selectable LED colors (turns from red to green or green to red) to show if the sensor is activated
  • Weatherproof (IP65*) for outdoor use
  • OEM / Private label available

* Weatherproof when properly installed



Operating Voltage 12~24 VDC
Relay Type Form C dry contact, NO/NC/COM, 1A@24VDC, 0.5A@12VAC
Response Time 10mS
Output Time 0.5~20s, toggle
Range 1-9/16″~6″ (4~15cm)
IP Rating Weatherproof IP65*
Operating Temperature -4°~131° F (-20°~55° C)
Dimensions ø1-1/2″ (ø38mm)



The indicator light is continuously green
  • Check that there are no objects in front of the sensor
  • Adjust the sensor’s range to be shorter (see IR Range and Trigger Time Settings on page 3)
  • Check that the power supply’s voltage is 12~24 VDC
  • Adjust the trigger time setting – a long delay or enabling toggle mode could affect the sensor’s operation
The indicator light will not
turn green
  • Adjust the sensor’s range to be longer (see IR Range and Trigger Time Settings on page 3)
  • Check that the power supply’s voltage is 12~24 VDC

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