SICK VT18-204172S01 Diffuse Photoelectric Sensor

The SICK VT18-204172S01 is a diffuse photoelectric sensor in a cylindrical, barrel-style housing from the V18 family, designed for detecting reflective surfaces at close range via infrared light up to 105 mm away. This 3-wire device provides a selectable NPN/PNP DC output and ships with a 2 m cable, operating from a supply up to 30 V DC with a maximum load current of 100 mA. The sensor is IP67 protected and constructed with a nickel-plated brass housing, and it features threaded mounting for secure installation in tight spaces. With an infrared light source and a fast response time of ≤6.25 ms, it is suited to quick presence checks on conveyors and packaging lines where diffuse sensing is appropriate. The VT18-204172S01 belongs to SICK’s V18 series, offering compact, rugged sensing for industrial automation environments and harsh conditions, such as ambient temperatures from -25 °C to +70 °C.