Global electronics provides a ph meter, dph 504. Some of the salient features of ph meter include: rugged laboratory grade instrument; automatic temperature compensation; and display of solution temperature. The company`s endeavour is `reliability through design` - to produce instruments which give years of reliable and trouble free service. Its ph analysers and controllers, conductivity anlysers, relative humidity, differential pressure and biotechnology instrumentation systems have proven themselves in over 25 years operation in industrial environments in diverse applications that include research, active pharmaceutical ingredient production, clean rooms, water and waster water treatment. The long list of totally satisfied customers is proof enough of its capability to engineer a solution to meet the customer`s need. All instruments have been developed "in house" right from the concept level, keeping in mind the indian environment and conditions. These instruments are signed for indian conditions. The company has an in house calibration laboratory equipped with standards traceable to nist and national standards. It undertakes calibration of measurement equipment at its laboratory and at site.