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HIOKI IR4057-50

Insulation Tester, Digital Megohmmeter, 50V, 125V, 250V, 500V, 1kV, 100Mohm to 4Gohm, -25 °C

HIOKI IR4057-50
HIOKI IR4057-50
HIOKI IR4057-50
HIOKI IR4057-50

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Product Range
Insulation Tester Series
Technical Datasheet:
IR4057-50   Datasheet
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Digital Megohmmeter

50V, 125V, 250V, 500V, 1kV

100Mohm to 4Gohm







Insulation Tester Series

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Technical Documents (1)

Product Overview

IR4057-50 is a 5-range, 50V to 1000V digital insulation resistance tester with bargraph, and delivers efficient functions and features to help shorten work time associated with field insulation testing. This instrument is an insulation ohmmeter that shortens work times associated with insulation testing.
  • Easily transfer measurement data to your phone/tablet by using GENNECT Cross app/to an Excel® file
  • Stable & high-speed digital readings, 0.3 second response time for PASS/ FAIL decisions
  • Continuity check via 200 mA testing
  • 5-range testing voltage of 50V/100Mohm to 1000V/4000Mohm
  • Drop proof onto concrete from 1m (3.28feet)
  • Built in AC/DC voltage meter, useful for testing solar power generation systems & electric vehicles
  • Digital bar graph
  • Bright LED, luminous LCD, test lead with bright LED lamp to illuminate near hand(option L9788-11/10)


Digital insulation resistance tester, Connection cable L4930 ×1, Alligator clip set L4935 ×1, Test pin set L4938 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4.


It is not designed for use on manufacturing lines and should not be used in such applications. For manufacturing line applications, use the ST5520 insulation tester.

5 In stock

More stock available week commencing 5/5/24
Standard lead time for this product is 6 weeks.
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