Features: 1. Available in five styles for your choice 2. High quality aluminum alloy material, durable and long service life 3. Suitable for forging machine tools, automation equipment, shearing machines, hydraulic machines, robots, industrial robots and other automation equipment 4. Fast response, it has shock resistance and strong anti-interference 5. This grating can be used for multi-area protection, etc. Specification: Condition: 100% Brand new Output Method: NPN/NC Working Input Voltage: 10-30VDC Light Curtain Type: on the Type A Series: Relay wiring method Number of Beams: 4 beams / 6 beams / 8 beams / 10 beams / 12 beams (corresponding to the model selection) Optical Shaft Spacing: 40mm Effective Protection Height: 120/200/280/360/440mm (corresponding models are available) Detection Distance: 0.3-2 Meters Length of Each Cable: 2.15 Meters (2pcs) Response Time: ≤ 20ms Housing Material: Aluminum Alloy Protection level: IP-65 Insulation Resistance: Greater than 10MΩ Product Color: Yellow Size(optional): Approx. 195 x 29.8 x 18.5mm / 7.7 x 1.2 x 0.7in 275 x 29.8 x 18.5mm / 10.8 x 1.2 x 0.7in 355 x 29.8 x 18.5mm / 14 x 1.2 x 0.7in 435 x 29.8 x 18.5mm / 17.1 x 1.2 x 0.7in 515 x 29.8 x 18.5mm / 20.3 x 1.2 x 0.7in Optional Style: 4 Beams BEM0440-C-120NB, 6 Beams BEM0640-C-200NB, 8 Beams BEM0840-C-280NB, 10 Beams BEM1040-C-360NB, 12 Beams BEM1240-C-440NB Package List: 1 Bag of Screws 2 x Black Connecting Cable 2 x Yellow Light Gratings 1 x English User Manual .