Features Grating safety device: The light curtain sensor is a 100% brand new type of grating safety device, made of high-quality plastic, tough and stable, durable, and can be used for a long time. 8 beams: The output mode of the curtain sensor security device is NPN-NC, which can generate 8 beams. The curtain sensor device has fast response and impact resistance, and the protection height is 200mm/7.87in. Application: The curtain sensor device is easy to install and disassemble, suitable for forging presses, automation equipment, shears, hydraulic presses, and regional anti-theft. Size: The total height of the curtain sensor device is 359 mm/14.13 inches, the weight is about 1048g, and the light spot distance is 40mm/1.57in. Packing list: The light curtain sensor package contains 1 package * screws and mounting brackets, 2 * connecting wires, 1 * grating transmitter, 1 * grating receiver, Features: This product is a light grating security device, which is made of quality plastic. The curtain sensor device is made of tough and steady material, durable, can serve a long time. It has fast reaction, resistant to shock. Easy to install and detach, convenient for you to use. Suitable for forging machines, automatic equipment, shearing machines, hydraulic machines, and area theft prevention.   Specifications: Model: BEM0840-30NB Material: plastic Color: as picture shown Output Mode: NPN-NC Voltage: 24VDC Light Beam Number: 8 Light Point Distance: 40mm/1.57in Protect Height: 200mm/7.87in Total Height: 359mm/14.13in Weight: Approx. 1048g   Package List: 1 Pack * Screws & Mounting Bracket 2 * Connecting Line 1 * Grating Transmitter 1 *Grating Receiver Package List