MULTIMETER FOR MEASURING ELECTRIC CURRENT, VOLTAGE AND OHM VALUE; THREE-PHASE POWER SOURCE DETECTORS; DECIBELMETERS; [ ENGINE GAUGES FOR CARS, NAMELY, AIR, LIQUID PRESSURE GAUGES; ] WATER TEMPERATURE GAUGES; WATER QUALITY ANALYZERS: [ FIRE-ALARM SENSORS; ] POWER FACTOR CORRECTORS; WATTMETERS; AC POTENTIOMETERS; VOLTAGE INDICATORS; VOLTMETERS; PHOTOMETERS; AMMETERS; ELECTRONIC TESTING EQUIPMENT, NAMELY, ELECTRICAL METERS FOR MEASURING VALUE OF RESISTANCE, CAPACITANCE, VOLTAGE AND CURRENT; [ TE...