Hioki insulation testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The ir4056 is a 5-range, 50v to 1000v digital insulation resistance tester with efficient functions and features to help shorten work time associated with field insulation testing. Cat iii 600 v excluding ir4056-21
key features • 5-range testing voltage of 50 v/100 mω to 1000 v/4000 mω • stable & medium-speed digital readings, 0.8 second response time of pass/ fail decisions • drop proof onto concrete from 1m (3.28 feet) • bright led, luminous lcd, test lead with bright led lamp to illuminate near hand (also available in the ir4056-21) • continuity check via 200 ma testing • built in ac/dc voltage meter, useful for testing solar power generation systems and electric vehicles