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 product3. Convenient to carry and store4. Insulation testing between windings is also very convenient, such as for electric motors, power frequency , highfrequency , phase to phase insulation, and insulation testing of the outer shell iron core5. Widely applicable and measurable: NIMOS/PMOS/IGBT/transistor/unidirectional thyristor/voltage regulator diode/lightemitting diode/rectifier bridge/varistor/ceramic gas discharge tube/electrolytic capacitor/withstand voltage valuParameters:Adjustable output voltage: DC 50V3700VVoltage display accuracy: 0.3%Output voltage error: 50V, resistance error, actual output 36503750VAdjustable output current: 50uA5mAOutput mode: constant voltage, constant current outputMaximum power of the entire machine: 5Voltage meter resolution: 0.1V below 100V, 1V above 100VBattery capacity: 700mA lithium batteryCharging current: 550mACharging interface: TYPEC (red light for charging, green light for full charge)Charging adapter: 5V1A mobile phone charger can be used for chargingProtection function: 80 over temperature protection (high temperature blue light)Lithium battery undervoltage: Blue light when the battery is below 3.3VHost weight: 108g (without any accessories)(Due to different product batches, the appearance , which does not affect the use)Colour:BlueMaterial:PlasticPackage Contents:1x Tester1x English Instruction manual10x Crocodile clip test line accessoryOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.