Profile: Netel India Ltd. is a supplier of instruments & services used in analytical, environmental and process control fields. Our environment & process instrumentation division manufactures & supplies instruments such as air quality analyzers & systems, water quality monitors, vehicular emission monitoring units, and atomic absorption spectrophotometers. Our diesel smoke meter is a micro controller based unit. It has an alpha numeric LED display. Our electronic programmable pressure controller (EPPC) is a state of the art device, which enables the pressure at the head of the column to be varied in a series of ramped steps, selectable by the operator. It can be operated automatically. Our controller improves many aspects of capillary column gas chromatography by varying carrier gas pressure during analysis.