The modern Instrumentation field has been invaded by processor chips and automation, yet often the equipment has degenerated into hi-tech black boxes incompatible to the harsh operating environment in developing countries. Besides being expensive, automated instruments are based upon secondary properties which require calibration and support facilities often not available in the local markets. Envirotech has therefore, consciously based its instruments on primary / standard methods by US EPA and WHO. Wherever necessary, features have been added to make the systems suitable for hot weather and sometimes erratic power supply. For example, gaseous sampling units of our Stack Monitors, Sequential Samplers and High Volume Samplers have insulated cold boxes surrounding the wet-bubblers to ensure complete absorption of gaseous pollutants.

Besides strengthening the development effort, Envirotech has sought institutional support in calibrating its equipment. Flow metering devices used in Envirotech's Stack Monitors and High Monitor Samplers are periodically calibrated at IIT Delhi in test rigs developed for the purpose. The Wind Monitor has been wind tunnel tested at IIT Delhi. Sophisticated techniques like scanning electron microscope and laser particle counters have been used to evaluate our Respirable Dust Sampler's particle size cut-off.

With increasing urbanization the need for pollution monitoring instrument has been felt by our neighboring countries. Over the past few years instruments worth Rs. 5 million have been exported by our export division, Envirotech International, to neighboring countries, the Middle East and the Far East . Besides providing instruments in Bangladesh and Nepal teams from Envirotech have actively participated in vehicular Smoke Surveys and helped local manpower.

Even the best equipment can give erratic results if it is not handled properly, due to a dearth of trained manpower. Envirotech has therefore made consistent efforts to help train our users and their staff by organizing several short courses and workshops all over the country in locations like Ghaziabad, Patiala, Parwanoo, Raipur, Baroda, Indore, Hyderabad, Chennai, Salem, Kolkata, Guwahati, Shillong and Nepal-Kathmandu. These courses have often been co-sponsored by the pollution control boards and also included faculty from local universities and engineering colleges.