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Seco-Larm E-964-Q330Q Multi-Frequency Quad Photobeam Detector E-964-Q330Q – 330 ft. Outdoors, 660 ft. Indoors

Seco-LarmSKU: E-964-Q330Q

Sale price$292.00
Usually ships within 3-5 business days

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The ENFORCER E-964-Q Series Quad-Photobeam Sensors are ideal for long-distance protection. Four selectable beam frequencies allow for superior perimeter protection by eliminating crosstalk and interference between multiple units. False alarms created by animals and falling leaves are minimized by the sensor’s detection method of all 4 beams simultaneously broken.

The E-964-Q Series of sensors is designed to work in even the most extreme conditions. A built-in heater automatically turns on and off depending on the outside temperature. An environmental control output senses a slow degradation in beam strength when weather conditions worsen preventing false alarms.

Installation and alignment is quick and easy with the ENFORCER E-964-Q Series. The built-in laser and visual alignment systems quickly and easily pinpoint the approximate mounting location for the transmitter and aid in aligning the transmitter and receiver units once mounted. A beam strength indicator clearly displays the strength of the beam at the receiver with 5 LEDs.

  • Built-in laser beam alignment system speeds accurate, reliable positioning
  • Multi-frequency (4 channels selectable)
  • Quad infrared beams provide reliable perimeter security, minimizing false alarms from falling leaves, birds, etc.
  • Lensed optics reinforce beam strength & provide excellent immunity to false alarms due to rain, snow, mist, etc.
  • Weatherproof (IP55), sunlight-filtering case for indoor & outdoor use
  • Anti-frost system with built-in heater so that beam functions even in extreme conditions
  • Automatic input power filtering with special noise rejection circuitry
  • NO/NC alarm output
  • N.C. tamper circuit included
  • Non-polarized power inputs
  • Quick, easy installation with built-in laser beam and audible alignment system
  • Built-in alignment strength indicator
  • Interruption time adjustable for nearly all situations



Type Quad Multi-Frequency Photobeam Detectors with Laser Beam Alignment
Current Draw (Tx & Rx) 115mA, (Tx & Rx & heaters) 270mmA
Number of Beams 4
Sensing Range Outdoor- 330′ (100m) Indoor- 660′ (200m)
Operating Voltage AC/DC 12~24V (Non-polarized)
IP Rating Weatherproof IP55
Interupt Speed 50msec~700msec (adjustable)
LEDs – Red Transmitter and receiver are not aligned or when beam is broken
LEDs – Green Power LED (Rx & Tx) – Indicates connected to power.
Detection System Simultaneous break of 4 beams
Alarm Output Form “C” relay COM/N.O./N.C. 1A@125VAC/24VDC
Tamper Output NC switch, 1A@120VAC
Case material PC Resin
Laser Wavelength 650nm
Operating Temperature -13º~+131º F (-25º~+55º C)
Dimensions 15-1/4″ x 4-7/16″ x 4-11/32″ (387 x 113 x 110mm)
Laser Output Power 5mW
Alignment Angle Horizontal (+/-)90º, Vertical: (+/-)15º
Weight 5.73-lb (2.6kg)



Transmitter LED not lit
  • Make sure the input power to the transmitter is 12 to 24 VAC/VDC.
Receiver LED does not light when interrupted
  • Check the input power to the receiver is 12 to 24 VAC/VDC.
Beams are interrupted and LED lights, but the alarm does not trigger.
  • Check the continuity of the wiring from the receiver to the alarm.
Signal LED continuously lit
  • Clear any obstacles between the transmitter and receiver.
  • Clean the lenses of both units.
Alarm trigger becomes erratic in bad weather
  • Check overall system installation.
  • Realign the lenses
Frequent false alarm triggers
  • Adjust the response time.
  • Change location of transmitter and receiver.

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