Digital AC Voltage Frequency Meter, DROK Digital Voltmeter Panel AC 80-300V 110v 220v Frequency Counter 45.0Hz-65.0Hz LCD Display Voltage Frequency 2-in-1 Monitor Tester Gauge with Two Wires
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Digital AC Voltage Frequency Meter, DROK Digital Voltmeter Panel AC 80-300V 110v 220v Frequency Counter 45.0Hz-65.0Hz LCD Display Voltage Frequency 2-in-1 Monitor Tester Gauge with Two Wires
DROK 2 in 1 meter can measure AC Voltage 80-300V and frequency 45.0-65.0Hz simultaneously, with potentiometer for frequency calibration, turn the screw clockwise to increase frequency and turn the screw anticlockwise to reduce the frequency.
The panel meter can directly connect two wires to the tested Voltage to measure Voltage and frequency without offering power supply.
Our digital voltmeter can test voltage with high accuracy and high working efficiency of 2 times/s measuring speed.
Only suitable for Pure ac45-65hz Mains supply, can't be used for measuring circuit of square wave, inverter output and sine wave.
Two wires direct connection, standard installation Size, can work under extreme environmental condition.
Extreme Working Condition: Operating Temperature: -10~+50℃ Operating Humidity: 10~80%(no condensation) Working Pressure: 80~106kPa Sunlight Irradiation: No
Note: 1.Needn't power supply: you can dirrectly connect two wires to the tested voltage to measure voltage and frequency 2.This meter is only suitable for pure AC45-65Hz mains supply, can't be used for measuring circuit of square wave,inverter output and sine wave, or it will be in permanent damage.