Endee Engineers markets a full range of hygrometers using state-of-the art electronics to standards and specifications of Shaw Moisture Meter, UK. These incorporate the most accepted and highly reliable, fast and accurate Shaw sensors, which are stable, have long life and feature automatic calibration, equipped with single or dual alarms, adjustable over the complete range. The most important feature of the Shaw sensors system is the automatic calibration facility. Each sensor is precisely manufactured so as to saturate with water vapour at its design maximum. Hence when the sensor is exposed to moisture above its maximum operating range, it will rapidly come into equilibrium at its design maximum and cease to respond to any further moisture. This forms the basis of automatic calibration. It can be calibrated by simply exposing the sensor to any atmosphere, which is "wetter" than the operating range of the sensor (room air is sufficient) and by adjusting the calibration control on the front panel of the instrument to display the maximum range. The sensor is recalibrated and ready for use. Recalibrations can be carried out in situ and without taking recourse to any special equipment or skilled personnel. The net result is reduced down time, minimum calibration costs and immediate verification of the system. Applications: chemical and petrochemical processing, LPG processing and distribution, electric power generation, metals production and treatment, bottled gas production and storage, refrigeration, air and gas drying, R&D quality control labs, energy management, etc.