Protocontrol Instruments [India] Pvt Ltd offers Economical Indicating and Controlling Instruments block. Protocontrol Instruments [India] Pvt Ltd is an ISO 9001:2000 certified organization. Protocontrol Instruments [India] Pvt Ltd also manufactures Safety Switches, Proximity Switches, Temperature & Humidity Measurement, Signal Conditioning Products etc. The Economical Effective Indicating And Controlling Instruments blocks consists of various types of basic timer & counter to micro-controller based flow Integrator, Totalizer, Batch counter & Pressure Transmitter. These are used in system automation and Process control. The Economical Indicating and Controlling Instruments Blocks are Sleek, reliable& cost effective.