Features: 1.Performance: The voltmeter adopts automatic decimal point shift design, with strong anti interference ability and fast display refreshing speed. 2.Same Screen Display: Voltmeter has compact size, support at the same time, the same screen display voltage and current. 3.Excellent Performance: Exquisite SMT process and clear digital display, bringing you excellent visual experience. 4.Application: Voltmeter can be used to monitor the battery, DC adjustable power supplies, or other equipment voltage and current change status. 5.Durable Construction: High strength ABS construction for maximum durability, high work efficiency and stable performance. Specification: Item Type: Digital Voltmeter Ammeter Material: ABS Technical Parameters: Test Voltage Range: Range: 600V, test range (v) : 0-600V, resolution (v) : 1V, resistance() >2M Test Current Range: Range 100A, test range (A) : 0.0-99.9A, resolution (A) : 0.1A Product Size: Approx: 70x40x30mm/2.75x1.57x1.18in Installation Aperture: Approx: 68x38mm/2.67x1.49in Measurement Accuracy: 1% (1 bit) Measurement Rate: 500mS/ time Working Environment: Operating Temperature: -10-+65 Working Humidity: 10 - 80% (no condensation) Working Pressure: 80 -106kPa