OPTEX SL-200QN(C) Smart Line 4-Beam Infrared Barrier for Outdoor Security, 60m Range

For securing wide entrances, long fence lines, or the boundary of a commercial property, the OPTEX SL-200QN(C) Smart Line creates a vertical curtain of four synchronized infrared beams. When all four beams are blocked simultaneously, the detector triggers an alarm signal to your control panel or siren. With a 60-meter outdoor range (120 meters indoor), it is ideal for long fences, gate entrances, and open spaces.

Key specifications

• Active infrared detection with 4 beams (quad)
• Outdoor range up to 60 m (indoor 120 m)
• Power input: 10.5–30 V DC
• Alarm output: N.C./N.O. selectable (30 V AC/DC, 0.2 A max)
• Tamper output: N.C. (30 V AC/DC, 0.2 A max)
• Response time: 50 ms to 700 ms (selectable)
• Beam pitch: 100 mm
• Alignment: horizontal ±90°, vertical ±10°
• Operating temperature: -35 °C to +60 °C
• Protection rating: IP65
• 4 switchable frequency channels
• D.Q. circuit for stable detection against environmental interference
• A.T.P.C. (Automatic Transistor Power Control) maintains signal strength
• Walk test output for easy commissioning

Why choose it

The SL-200QN(C) is engineered for outdoor reliability. The D.Q. circuit and A.T.P.C. work together to keep the beam level consistent, even under heavy rain, snow or fog. The IP65 housing protects against water and dust, and the wide operating temperature range makes it suitable for harsh climates. You can also adjust the response time to reduce false alarms caused by small animals or leaves.

Ideal use cases

• Perimeter fence lines
• Gate entrances
• Open spaces

Good to know

Mounting on wall or pole is supported. The housing is made of PC resin for durability. The detector includes a tamper output for added security. With four selectable beam frequency channels, you can avoid interference from other devices.