Features 1、INFRARED LAMP CHIPS: Using infrared lamp chips and light panels, far infrared design, strong light resistance, can quickly and accurately respond to signals. 2、IP65 PROTECTION LEVEL: High protection level, with short circuit, over current and reverse connection protection, back slider groove design, excellent seismic performance. 3、DUSTPROOF AND WATERPROOF: Aluminum alloy shell, strong structure, good sealing, dustproof, waterproof, oil proof, prevent foreign matter from intruding into the grating. 4、SAFETY SELF INSPECTION DESIGN: Intelligent protection circuit, safety self inspection design, if a failure occurs during work, it will be locked to a safe state to avoid accidents. 5、WIDE RANGE OF APPLICATION: Anti interference, still sensitive in a relatively harsh working environment, suitable for stamping machinery, shearing machinery, and production lines. Specification Item Type: Safety Light Curtain Set Material: ABS+Aluminum alloy Weight: Approx. 744g / 26.2oz Model: BEM0820-A-140NB Uses: Suitable for stamping machinery, shearing machinery, production line Number of Beams: 4 Beams Beam Spacing: 20mm / 0.79in Protection Height: 60mm / 2.36in Detection Distance: 0.3-2m / 1.0-6.6ft Output Mode: NPN/NC Protection Level: IP65 Protection Mode: Short circuit protection, over current protection, reverse connection protection Working Mode: Programming Synchronous Scanning Intelligent Design: Automatically lock to a safe state in the event of a failure Features: Anti Interference Package List 2 x Light Curtain Sensor 2 x Adapter Line 4 x Fixing Clip 1 x Accessory Kit (4 x Bolts, 8 x Screws, 4 x Nuts, 4 x Gaskets, 4 x Backing Rings) 1 x Manual