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Conventional Reflective Beam Smoke Detector with Laser Beam Pointer - China Fire Alarm Beam Detector, Infrared Beam Detector | Made-in-China.com
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Amazon.com: Johnson Level & Tool 40-6700 OneSided Laser Detector w/Clamp for Red Beam Rotating Lasers, 6.50" x 2.50", Red Beam, 1 Laser Detector,Orange : Tools & Home Improvement
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