The digital insulation tester is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The craftsmanship can serve you well without breaking easily. This is a very practical digital insulation tester. Features -Material: ABS, rubber, electronic component Measurement range is 0.1M—1999M, 1V-750V voltage frequency: 40Hz-70Hz. - Automatic release of voltage function, variable rated output voltage, can be used in measuring the insulation resistance of various electrical equipment and insulating materials such , cable, switcher, electrical appliance, etc. - With protective sleeve, -drop, effective protect the tester from external damages. - After the test work is completed, the automatically discharges, professional, safe and accurate test. - If the meter is turned on and not used within 22 minutes, it will automatically shut down. - workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 1 x Digital megohmmeter 2 cables 2 x Clamps 1 x Manual