Safe House 49-307 Infrared Photoelectric Security Alarm Photorelay Beam

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Invisible Pulsed Beam Infrared Photorelay Alarm Home Alarm

Safe House Infrared Photorelay Alarm 49-310. Condition unknown. User Manual.

Safe House Invisible Pulsed Beam 49-307A Infrared Photorelay Alarm New Open Box

Vintage Radio Shack (49-311) Home / Business Invisible-Beam Entry Alert - Works

Vintage Radio Shack Safe House Invisible Beam Intrusion Sensor 49-551a

UNUSED Vintage SAFE HOUSE 49-530 Infrared Motion Sensor (A7)