This digital insulation tester is made of , which can withstand use. Features the ABS, rubber and electronic component material, which has high durability, not easy to deform. Fine workmanship, practicality. Features - Material: ABS, rubber, brass. - Size: 16.50X12.00X5.70cm/6.48X4.72X2.24 inch. - The rated output can be selected among , 500V and 1000V by using the function knob. alert. - High indication: There is a LED light (HV ON) in the machine and “HV” is displayed on the left side of the display screen, indicating that there is high output in the instrument, there is a of electric shocks, the operator should pay special attention to safety. - Digits display, intuitive reading. Easy to operate and carry. Strong load capacity, output short-circuit current less than 1.6mA. - Complete protection circuit, not afraid of , output short circuit protection. - Fashionable style, and structure, suitable for outdoor operation. Specification - Output : /500V/1000V. - Short circuit current: <1.6MA - Test current: (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: 2 x Digital Megohmmeter 4 Cables 4 x Clamps 2 x Manual 2 x Packing Box