Protocontrol Instruments [India] Pvt Ltd manufactures Compact Inductive Proximity Switch. Protocontrol Instruments [India] Pvt Ltd is an ISO 9001:2000 certified organization. Protocontrol Instruments [India] Pvt Ltd also manufactures Electronic and Digital Process Control Instruments, Temperature & Humidity Measurement, Signal Conditioning Products etc. The Compact Inductive Proximity Switch is a non-contact electronic sensor. There are 3 models available viz: - Series IPS D3, Series IPS D2 NC, and Series IPS A2. It consists of three components - oscillator, trigger and output. The Compact Inductive Proximity Switch is used to detect metallic targets. This switch works on 10-40 V DC and directly drive DC relay or PLC gate. It is most widely used industrial sensor for sensing position and speed.