Feature: 1. Energy Monitor: The voltmeter can detect and display various electric parameters such as voltage, current, active power and so on. 2. Wide Test Range: The test range are 6-200V, 0-20A, 0-4.4kW and 0-99999kWh, applicable to most places, but please do not exceed the rated parameters. 3. Better Display: Mainly made from premium ABS material, the volt tester is equipped with large LCD screen for clear display and viewing. 4. Alarm Function: Set the power alarm threshold. When the detected power value exceeds the threshold, the backlight and power supply will flash for alarm. 5. Other Functions: Backlight set function, energy reset function, power overload alarm function, power failure data storage function. Specification: Item Type: Digital Voltmeter Product Model: Z3-20A Measuring Voltage: DC 6-200V Measuring Current: 0-20A Measuring Power: 0-4KW Energy Consumption Measurement Range: 0-99999KWh On Load Timing: 0-999 hours, 0 overflow. Measuring Impedance: 0-999K Ω, when out of range, the meter displays ---. Overload Alarm: Settable Voltage Alarm: Overvoltage and undervoltage alarm can be set. Wiring Type: Fence Type Terminal Installation Method: Embedded Product Size: Approx. 68 x 68 x 22mm / 2.68 x 2.68 x 0.87in. Panel Opening Size: Approx. 63 x 63mm / 2.48 x 2.48in. Package List: 1 x Digital Voltmeter1 x User Manual