Protocontrol Instruments [India] Pvt Ltd offers Sleek Photoelectric Proximity Switch. Through beam, retro reflective and diffuse versions are available for the Sleek Photoelectric Proximity Switch. Protocontrol Instruments [India] Pvt Ltd is an ISO 9001:2000 certified organization. Protocontrol Instruments [India] Pvt Ltd also manufactures Digital Process Control Instruments, Temperature & Humidity Measurement, and Signal Conditioning Products etc. The Sleek Photoelectric proximity switches are used when higher sensing distance is desired. The Sleek Photoelectric proximity switches are used in conveyor belts, color sensing systems etc.