... : 24M Display: 11.3TFT (Colorful) RAM: 16MOperation system: WINDOWS 3.2 in EnglishSupply power: AC/DC 85-265V (exterior supply power or ... voltage, current, frequency, energy, power factor and etc. In the field, it can test the various types of simulation output transducer and ... , easy to carry on energy measuring department and comprehensive automation test. ENERGY METER FIELD-TESTING INSTRUMENTS