Description
The Optex SL-650QDP is a professional-grade outdoor photoelectric beam detector designed for high-security perimeter applications. With a detection range of up to 650 feet (200 meters), it employs quad-beam technology and dual modulation to enhance signal discrimination and minimize false alarms caused by environmental factors such as birds, leaves, or sunlight.
Key Features:
Quad Beam Detection: Utilizes four synchronized infrared beams to reduce false alarms and enhance detection accuracy.
Dual Modulation: Enhances signal discrimination against potential interferences, ensuring reliable performance even in challenging environments.
4-Channel Beam Frequency Selector: Allows for stacking multiple beam sets without crosstalk or signal interference.
Sniper Viewfinder and Alignment Sound Assist: Facilitates precise optical alignment with a 2x magnification telescope lens and audible indicators, even at long distances.
Beam Power Control Selector: Allows manual adjustment of beam power to prevent crosstalk and interference when using multiple beams over varying distances.
Sunshine Protection Technology: Triple-layer construction provides better performance against external light sources like sunlight or headlights.
Weather-Resistant Design: IP65-rated enclosure ensures durability and reliable operation in harsh environmental conditions.
Tamper Protection: Equipped with tamper output to alert against unauthorized access or removal.
What’s Included:
1 x SL-650QDP Transmitter Unit
1 x SL-650QDP Receiver Unit
Mounting Hardware
Installation Manual
Specifications:
Detection Range: Up to 650 ft (200 m)
Power Supply: 10.5 – 30 VDC
Current Consumption: Max. 43 mA
Alarm Output: Form C relay, 30 VDC, 0.2 A
Operating Temperature: -35°C to +60°C (-30°F to +140°F)
Dimensions: 17.6 x 3.1 x 3.8 inches (448 x 79 x 96 mm)
Weight: Approximately 5.5 lbs (2.5 kg)
Ideal for securing perimeters of commercial, industrial, or residential properties, the SL-650QDP offers advanced features to ensure reliable intrusion detection and reduce false alarms.





