E.S.I. Environmental Sensors Inc. (ESI) is a Canada-based company engaged in the development, manufacture, sale and after market servicing of water measurement instrumentation and related technology. The Company is meeting growing market demand and regulatory requirements for accurate, versatile technologies where water management is critical. The Company also provides sensors and systems on an OEM basis. ESI has adapted its core technology into an new instrument for measuring the water cut in producing oil wells. This technology can be applied in many other applications in the oil and gas and process control industries.