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    SECO-LARM ENFORCER E-964-S50TB — Multi-Frequency Single Photobeam Specifications

    September 08, 2026 2 min read

    Product specifications for the SECO-LARM ENFORCER E-964-S50TB Multi-Frequency Single Photobeam, up to 50ft range.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Product specifications for the SECO-LARM ENFORCER E-964-S50TB Multi-Frequency Single Photobeam — a single infrared beam motion sensor with up to 50ft (15m) range.

    Overview

    The E-964-S50TB is a simple, easy-to-install single-beam infrared motion sensor with 4 selectable frequencies. It creates an invisible beam that, when broken, sends a signal to activate a light, beeper, or other device — ideal for access control systems, door/window monitoring, retail customer alerts, or any application needing to detect when someone enters a specific room, building, or protected area. The unit is weatherproof and includes a built-in AGC control circuit to filter out disturbance from local lighting conditions.

    Features

    • 4 selectable frequencies to reduce interference
    • Small size for a less conspicuous installation
    • Simple to install
    • Signal strength indicator for easier alignment
    • Weatherproof for indoor/outdoor use (IP65)
    • Built-in AGC control to filter out lighting disturbances
    • LED indicators for power, signal strength, and trigger
    • Mounting hardware included

    Specifications

    Spec Value
    Number of beam channels Single infrared beam
    Number of beam frequencies 4
    Sensor range Up to 50ft (15m)
    Infrared LED wavelength 940nm
    LED beam spread angle Approximately ±10°
    Interrupt speed (minimum) 50ms
    Input power 10~24VDC
    Current draw (max) Transmitter: 15mA @ 12VDC / Receiver: 30mA @ 12VDC
    Relay output NO/NC relay (set by jumper, default N.C.), 0.5A @ 30VAC/VDC
    IP rating IP65
    Operating temperature -13°~131°F (-25°~55°C), max humidity 95%
    Dimensions 3-11/16"x2-3/8"x1-13/16" (94x60x46 mm)
    Weight 2.6-oz (74g)

    LED Indicators

    LED Meaning
    Power (Green, Transmitter) Indicates connected to power
    Power (Green, Receiver) Indicates connected to power
    Signal (Yellow, Receiver) Indicates receiver's signal is weak or beam is broken
    Alarm (Red, Receiver) Indicates transmitter & receiver are not aligned, or beam is broken

    Physical Layout

    The receiver includes a channel selection switch (2-position DIP switch), signal strength LED, power LED, wire terminals with wire hole, mounting hole, alarm indicator LED, and an NC/NO selector for the relay output. The transmitter has a matching channel selection switch, power LED, wire terminals, wire hole, and mounting hole.

    Manufacturer

    SECO-LARM U.S.A., Inc. — 16842 Millikan Avenue, Irvine, CA 92606. Phone: (949) 261-2999 / (800) 662-0800.