Metro Electronic Products manufactures Multi-Function Process Calibrator . Metro Electronic Products also offers Anemometers, electronic, audio meters/sound-level/db meters, automobile meters, electronic, clip-on meters/tong testers, frequency counters/meters, digital, insulation testers [meggers] & meters etc. Multi-Function Process Calibrator is a multimeter that is designed with exact current, voltage calibrator function and digital multimeter functions. The Multi-Function Process Calibrator is used for detecting and debugging automatic control equipment in industry scene. The Multi-Function Process Calibrator has primary and secondary LCD display and auto range.