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DAHUA DH-YJ104 Light Beam Detector 1. Introduction The DAHUA DH-YJ104 beam detector is a device designed for intrusion detection through an infrared barrier system. Its range of 5 to 100 meters and sensitivity of 1.8 dB make it a reliable solution for residential, commercial and industrial applications.
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5. Installation Prerequisites Required tools: screwdriver, drill and level. 12-24V DC power supply. Clear location with no obstructions between the transmitter and receiver unit. Installation Steps Selecting the location: Determine installation locations by making sure the area is free of objects that may block the light beam. Fixing units: Use the included screws and anchors to mount the transmitter and receiver unit.
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8. Maintenance Periodically clean the lenses with a soft, dry cloth to prevent dust build-up. Check electrical connections every 6 months. Perform functional tests quarterly.
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