BEVAV Hot sale AD16-Hz 22mm blue LED Digital Display Electricity Hertz Frequency Meter 0-99hz

Main technical parameters
        Environmental Temperature: -25+55;
        Working under vibration frequency 2-80Hz,acceleration at 0.7g;
        Relative Air Humidity: ≤98%;
        Pollution rank is three grade and installation category is III;
        Protection Degree: Head IP65(OEM could be IP67);
        Voltage of working frequency: 2.5kV (AC valid value), 1min;
        Leakage Index: CT1≥100;
        Frequency: AC 50-60Hz