1Far Infrared Design: Using high quality infrared lamp beads and light panel, far infrared design has strong anti light ability, and it can quickly and accurately respond to signals, greatly reducing the occurrence of accidents. 2Protection Function: High protection level, with short circuit, over current and reverse connection protection. The groove design of the back slide block has excellent seismic performance. 3Aluminum Shell: The aluminum alloy shell structure is sturdy and has good sealing performance, dustproof, waterproof and oil proof, preventing foreign matter from intruding into the grating, and it is still sensitive in a relatively harsh working environment. 4Intelligent Technology: Adopting smart technology to protect circuit safety. With self inspection design, if a failure occurs during work, the safety light curtains will be locked to a safe state to avoid accidents. 5Product Features: The safety light screen sensor supports programming synchronous scanning, the detection distance is about 0.32m / 1.06.6ft, suitable for stamping machinery, shearing machinery, and production lines. Item Type: Safety Light Screen Sensor Model: BEM0420-A-60NB Material: ABS + Aluminum Alloy Beam Spacing: 20mm / 0.8in Protection Height: 60mm / 2.4in Detection Distance: 0.3-2m / 1.0-6.6ft Product Weight: Approx. 613g / 21.6oz Working Voltage: 10-30V Number of Beams: 4 Beams 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 Uses: Suitable for stamping machinery, shearing machinery, production line 2 xSafetyLightCurtains 2 x Adapter Line 4 x Fixing Clip 1 x Accessory Kit (4 x Bolts, 8 x Screws, 4 x Nuts, 4 x Washers, 4 x Rings) 1 x Manual 1. A safety distance of 300mm / 11.8in must be maintained between the sensor and the hazardous area.2. It cannot be used for electronically controlled machines without immediate stop.3. When installing, you must consider whether there are other reflectors that can malfunction.