Features: Experience precise voltage testing with our Multifunction Withstand Voltage Tester, offering adjustable output from DC50V to 3700V with a remarkable accuracy, making it a essential tool for any professional setting. This device features a output of constant voltage or current, a power of 5W, and a high resolution voltmeter, ensuring reliable performances in various applications. For electrical engineers, technicians, and laboratory researcher, this tester enhances efficiency by providing accurate insulation voltage measurements across a wide ranges of component. Ideal for industrial inspections, laboratory tests, and electrical equipment maintenance, this tester is perfect for measuring the withstand voltage of transistors, diode, capacitors, and more. With its protections features like over temperature and low battery alerts, this tester ensures safe and efficient operation, making it a valuable addition to your toolkit. Specifications: Material: Plastic Output Voltage: DC50-3700V Output Current: 50μA-5mA Battery capacity: 700mAH Environmental temperature: -20-40 ℃ Size: About. 98x70mm/3.86x2.76in Color: Blue/Green/Red Package Includes: 1 Set Withstand Voltage Tester note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.