Fargo Controls manufactures capacitive, inductive, magnetic, and photoelectric proximity sensors with features such as stainless steel housing, nickel-plated brass housing, and plastic housing in varying sizes including 4mm, 5mm threaded, 30mm, rectangular. and more.

Siemens makes Simatic brand proximity sensors including inductive, photoelectric, ultrasonic, capacitive, and totally integrated models with applications including position measurement, color recognition, prescence detection, and absence counting.