SICK IME18-08BPSZC0K industrial inductive proximity sensor with a nickel-plated brass threaded barrel housing.
It features an M18 x 1 thread size, a sensing range of 8 mm, and operates on a 10-30 V DC supply voltage.
The sensor has a PNP output type, a 4-pin M12 male connector, and is typically rated IP67 for harsh environments.