Monitor your garage, gate, driveway or doorway with the Seco-Larm Enforcer Photoelectric Beam Sensor (50 ft.). This weatherproof sensor triggers an alarm in a connected security system when its infrared (IR) beam is broken. The 3-inch round reflector can be installed discretely on a wall or other flat surface. It provides a large sensing area for wide entryways, as well as easier alignment during installation. This sensor also features lensed optics and dual-color LEDs to strengthen the beam and minimize false alarms due to rain, snow, falling leaves, birds, etc.

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