22mm square mini indicator voltmeter ammeter frequency meter led digital display with signal light It is digital voltage tester signal indicator, high brightness LED display and cylindrical main body.
The meter can only use to measure AC electricity.
It can be used as signal indication, warning signal, accident signal and other signals in the line of electric power, telecommunication, machine tool, ship, textile,printing and mining machinery.
Note: 1.Please allow 0-2mm error due to manual measurement. pls make sure you do not mind before you bid. Specification
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