Authorized Seco-Larm Reseller

Seco-Larm E-9643-4B190Q Indoor/Outdoor Long Range Barrier Sensor, 190ft outdoor

Seco-LarmSKU: E-9643-4B190Q

Sale price$521.64
Usually ships within 3-5 business days
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ENFORCER Long-Range Barrier Sensors are ideal for protecting indoor or outdoor areas separated by long distances. They feature reliable photobeam technology with a choice of four programmable beam frequencies that provide superior perimeter protection by eliminating crosstalk and interference when multiple units are used. False alarms caused by animals, falling leaves, poor weather, or other sources are minimized by programming the alarm output trigger operation.

  • Weatherproof (IP65) for indoor or outdoor perimeter security
  • Long sensor range up to 190ft (60m) outdoors, 380ft (120m) indoors
  • Install on windows, doorways, skylights, fence tops, and any place where space is limited
  • End caps swivel so sensor can be mounted on a single wall or on opposite walls
  • Programmable immediate trigger on simultaneous breaking of beams, or trigger after a single pair of beams is broken for at least 2 seconds
  • Heater for use in cold weather operation
  • Heater activates at 41ºF (5ºC)
  • Terminal block wiring
  • Slim design: 2-1/4″ x 1-7/8″ (55 x 49 mm)
  • Rugged aluminum construction
  • Built-in tamper switches, one on either end, trigger the alarm if end cap is removed
  • No synchronizing wires required to align the beams
  • Form C relay output
  • LED and buzzer alignment indicators
  • AGC (Auto Gain Control) circuits regulate beam signals in order to compensate for and ensure operation in rain, fog, and low-temperature conditions
  • Programmable for 4 different frequencies to reduce interference between multiple units



Type Long-Range Barrier Sensors for Indoor/Outdoor Access Control – Up to 380ft (120m)
Number of Beams 4 pairs
Sensing Range Outdoor- 190′ (60m), Indoor- 380′ (120m)
Buzzer Active Current 20mA@12VDC (RX)
Heater Active Current 160mA@12VDC (Rx+Tx)
Rx Standby Current (Buzzer off) 80mA, heater off (+/-25%@12VDC)
Rx Trigger Current (Buzzer on) 80mA, heater off (+/-25%@12VDC)
Tx Standby & Active Current 84mA, heater off, (+/-25%@12VDC)
Input voltage 12~24 VDC
Operating Voltage 12~24VDC
Reaction time 150/300/450/600 ms (DIP switch programmable)
LEDs – Red Alignment LED (Rx only), ON – beam is broken / OFF – aligned
Detection System Triggers as programmed when any 2 adjacent pair of beams are broken, or any single pair of beams is broken for over 2 sec. (programmable by JP2)
Alarm Output NO/NC/COM, relay output, active for 1 sec. when triggered
Tamper Output 1A@120VAC / 1A@24VDC (Tx & Rx)
Case material Aluminum housing / PC anti-UV cover / ABS end caps
Operating Humidity 0~95%
Operating Temperature -49º~131º F (-45º~55º C)
Dimensions 1-7/8″ x 2-1/4″ (49 x 55 mm) [Width x Height]
Alignment Angle Horizontal +/-90º
Weight 7.7-lb (3.5kg) [with brackets]
Enclosure Weatherproof IP65
Length 43″ (109cm)



Receiver LED never turns ON and the buzzer never sounds Test the power and ground wire with a voltage meter to ensure power is connected and is of the correct voltage
Buzzer does not sound if the sensor is triggered -If jumper J1 is plugged in, this indicates that the beams are not aligned
-If jumper J1 is not plugged in, buzzer should never sound
Receiver LED is ON and the buzzer sounds all the time Realign the transmitter and receiver
Does not trigger when beam is broken -Remount the curtain sensor, or repaint the surface to cut down on reflection
-Lower the response time (SW1)
Receiver continuously triggers the alarm -Realign the transmitter and receiver
-Check that the tamper switch and the cover for the tamper switch are mounted correctly
False alarm -Reinstall so that one sensor does not interfere with another sensor
-Cut back on leafy vegetation
-Do not mount under the edge of the roof
-Mount under a roof or shelter

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