Fangrui Product Details 1. It Can Also Test The Insulation Voltage Of Objects. For Example, Insulation Voltage Testing Between The Two Pins Of Switches, Buttons, And Connectors. 2. Compact Product 3. Convenient To Carry And Store 4. Insulation Testing Between Windings Is Also Very Convenient, Such As For Electric Motors, Power Frequency , High-frequency , Phase To Phase Insulation, And Insulation Testing Of The Outer Shell Iron Core 5. Widely Applicable And Measurable: Nimos/pmos/igbt/ Istor/unidirectional Thyristor/voltage Regulator Diode/light-emitting Diode/rectifier Bridge/varistor/ceramic Gas Discharge Tube/electrolytic Capacitor/withstand Voltage Valu Parameters: Adjustable Output Voltage: Dc 50v-3700v Voltage Display Accuracy: 0. Output Voltage Error: 50v, Resistance Error, Actual Output 3650-3750v Adjustable Output Current: 50ua-5ma Output Mode: Constant Voltage, Constant Current Output Maximum Power Of The Entire Machine: 5 Voltage Meter Resolution: 0.1v Below 100v, 1v Above 100v Battery Capacity: 700ma Lithium Ba