Insulation testers Model No：DI-6200 Description： INSULATION TESTER Model : DI-6200 * Mega ohm : 200M /500V, 1000M /1000V, Ohms – 200 ohm. * Battery power (UM3 x 8), 18 mm LCD. * Size : 170 x 127 x 78 mm. INSULATION TESTER Model No：DI-6300 Description： INSULATION TESTER Model : DI-6300 * 200 M ohm (100V), 200 M ohm (250V), 200 M ohm (500V), 1000 M ohm(1000V), ACV, 200 ohms, continuity beeper. * Short circuit, 2.8 mA high driving current. * Size : 160 x 120 x 85 mm. INSULATION TESTER, with 2000 M ohm (1000V) Model No：DI-6300A Description： INSULATION TESTER Model : DI-6300A * 200 M ohm (100V), 200 M ohm (250V), 200 M ohm (500V), 1000 M ohm(1000V), ACV, 200 ohms, continuity beeper. * Short circuit, 2.8 mA high driving current. * Size : 160 x 120 x 85 mm. * Same as DI-6300, but with 2000 M ohm (1000V). * Test lead TL-88 and alligator clips AL-05 are included. INSULATION TESTER, + DMM Model No：DI-6400 Description： INSULATION TESTER, + DMM Model : DI-6400 * Auto-range and multi-function. * Insulation measurement ranges: 1. 4/40/400/4000 M ohm, auto range (250 V, 500 V, 1000 V) 2. 4/40/400 M ohm, auto range (100 V) * Build in the ACV & DCV & OHMS function : DCV (600.0 V), ACV (600.0 V), OHM (400.0 ohm, 4,000 ohm, auto range). * CAT III 1000V. * Automatic zero adjust & automatic circuit discharge. * Lock & Test functions, safety and easy operation. * Precision resistance measurement with auto-range, useful for measuring low resistance value such as motor windings, relay coils etc. * A continuity beeper is equipped in OHM range. * Jumbo LCD display allows clear read-out. * LSI-circuit provides high reliability and durability. * Built-in over-input and low battery indication. * Battery operating easily to carry with user. * Overload protection for each range. * Durable & portable housing case with the front rubber protection cover. * Heavy duty test leads with the alligators. * RS-232/USB computer interface. * Powered by AA DC 1.5 V X 8 batteries or DC 9V adapter.