- Description
- Specifications
Twin Infrared Photoelectric Beam Sensor with 190 ft Outdoor Range and Built-In Laser Alignment
The Seco-Larm E-960-D190Q is a twin photoelectric beam sensor that creates an invisible infrared detection line across doorways, driveways, fence lines, and perimeter zones up to 190 feet outdoors or 390 feet indoors. The twin-beam design requires both beams to be broken simultaneously before triggering an alarm, which eliminates false alarms from birds, falling leaves, and other single-point interruptions. A built-in laser alignment system makes installation fast and precise, and the IP55 weatherproof housing with anti-frost circuitry keeps the sensor operating reliably in rain, snow, and temperature extremes from -13 to 131 degrees F. It integrates with any security alarm panel through standard NO/NC relay and tamper switch outputs.
The E-960-D190Q runs on 10-30 VAC/VDC non-polarized input, drawing only 70mA, so it connects to the same power supplies already used in most alarm installations. The variable interrupt speed (50-700 msec) lets installers tune sensitivity to the environment: shorter interrupt times for high-security zones where fast detection matters, longer times for areas with frequent non-threat movement like swinging gates or tree branches near the beam path.
Where the E-960-D190Q Fits
- Perimeter security for commercial properties where the twin-beam sensor creates an invisible detection line along fence lines, parking lot boundaries, or building perimeters up to 190 feet, triggering the alarm panel when a person breaks both beams
- Driveway and gate entry detection where the beam sensor detects vehicles or pedestrians crossing a driveway or approaching a gate, providing an early warning zone before someone reaches the building entrance
- Indoor warehouse and restricted area monitoring where the extended 390-foot indoor range covers long hallways, loading docks, or warehouse aisles, and the twin-beam design avoids false alarms from forklifts passing through adjacent zones
What the E-960-D190Q Delivers
- 190 ft outdoor / 390 ft indoor detection range: Covers long perimeter runs with a single transmitter-receiver pair. The twin infrared beams operate at enough separation to require a human-sized object to break both beams simultaneously.
- Built-in laser alignment system: 650nm laser diode with horizontal adjustment of ±90° and vertical adjustment of ±5°. Alignment LEDs on the receiver confirm signal strength for precise aiming during installation.
- IP55 weatherproof housing with anti-frost: PC resin enclosure rated for outdoor installation in rain, snow, and dust. Built-in sunlight filtering prevents false triggers from direct sunlight, and anti-frost circuitry keeps the optics clear in freezing conditions.
- Variable interrupt speed (50-700 msec): Adjustable beam-break duration threshold lets the installer match sensitivity to the deployment environment. Faster settings detect quick crossings; slower settings filter out brief, non-threat interruptions.
- NO/NC alarm relay and NC tamper switch: Standard dry-contact outputs connect directly to any security alarm panel. The tamper switch triggers separately if someone opens the sensor housing, providing an additional layer of anti-defeat protection.
What Is a Photoelectric Beam Sensor?
A photoelectric beam sensor is a perimeter security device that projects one or more invisible infrared beams between a transmitter and a receiver. When a person or object breaks the beam, the receiver detects the interruption and sends an alarm signal to the connected security panel. Twin-beam models like the E-960-D190Q require both beams to be broken at the same time, which significantly reduces false alarms caused by small animals, debris, or weather. Photoelectric beam sensors are used for outdoor perimeter protection, driveway detection, and indoor restricted-area monitoring where motion detectors would be impractical due to range or environmental conditions.
