ALPHA is the world's leading manufacturer of trace moisture analysis and testing instruments for industrial gases. Alfa's dew point meters and humidity meters measure trace moisture in a wide range of industrial gases and dry compressed air from +20 degrees Celsius to -110 degrees Celsius dew point, i.e. 23,000 parts per million to almost parts per billion. A large number of user and microcomputer controlled dew point meters and humidity calibration sampling systems are manufactured according to Alpha's quality system with high quality components according to advanced standards and specifications. Alfa's quality system is ISO 9002 internationally certified