If you are looking for a professional and digital insulation tester, then your research is over here. That's because our product can meet your need. Adopted of , it is practical and for long time use. It is not easy to get deformed and bring you much convenience. Features - Material: ABS, rubber, brass. - Size: 16.50X12.00X5.70cm/6.48X4.72X2.24 inch. - The design, manufacture and testing of this instrument all meet safety requirements for electronic measurement products, with a variety of levels output, large capacity, strong anti-interference. - The ease of operation and safety are significantly better than traditional mechanical shaker is a perfect test instrument for measure the insulation resistance of generator, high- motor, power capacitor, power cable and arrester. - It is suitable for the maintenance, repair, test and verification of electrical equipment. - Smooth plugging and unplugging, and easy operation. - Simple in structure, easy to use, not easy to deform, you can use it with confidence. Specification - Output : /500V/1000V. - Short circuit : <1.6MA - Test : (R=250K), 500V (R=500K), 1000V (R=1M). - Range insulation resistance: : 0.1 M ~ 20M, 500V : 0.1 M ~ 50M, 1000V : 0.1M ~ 100M; : 20M~500M, 500V: 5OM~1000M, 1000V: 100M~2000M. - Median resistance: /500V: 2M, 1000V: 5M. - measurement: 750V. - Maximum display: 1999 counts. - Battery: 8 x AA battery (not included). Package list: 1 x Digital Megohmmeter 2 Cables 2 x Clamps 1 x Manual 1 x Packing Box