The DS35-B15821 | 1057656 from SICK AG is a Laser Displacement Sensor with Measure/Sensing Distance 50 to 12000 mm, Wavelength 827 nm, Response Time 2.5 to 96.5 ms, Repeatability 500 µm, Supply Voltage 12 to 30 VDC. More details for DS35-B15821 | 1057656 can be seen below.