Hioki insulation testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The IR4018-20 is a single-range, 1000V/2000MΩ analog insulation resistance tester with efficient functions and features to help shorten work time associated with field insulation testing.
 INSULATION TESTER IR4018 Key Features:
Single range testing voltage of 1000 V
Test insulation resistance up to 2000 MΩ 
Built tough to withstand a 1-meter drop onto a concrete floor 
Bright LED luminous scale
 Check for live circuits and battery status
Integrated hard case for quick and easy storage without disconnecting the leads