Hioki IR4057-20 Digital Insulation Resistance Tester

Hioki IR4057-20 Digital Meg-Ohm Meter Insulation Tester Comparator function provides PASS/FAIL decisions at a glance The comparator function compares measured values to pre-set reference values to generate a pass or fail judgment. (Can be used with insulation resistance measurement and low-resistance measurement.) The stable display is easy to read, increasing work efficiency. Instant judgment Since the IR4056-20 and IR4057-20 generate judgments as soon as the test lead makes contact, it is possible to make a rapid series of measurements in the manner of a continuity check. Identify PASS/FAIL using light and sound The IR4056-20 and IR4057-20 notify the operator of pass and fail judgments using a beeping sound, LCD light, and comparator indicator on the test lead with remote control switch (optional accessory), allowing determinations of compliance to be made without looking at the instrument. PASS When the measured value is greater than or equal to the reference value* Short beep   No change Green Fail When the measured value is less than the reference value* Continuous tone *Insulation resistance measurement Red Red Designed for safety and peace of mind Featuring improved convenience and ease of use DROP PROOF Testers are built tough to withstand a 1-meter drop onto a concrete floor AC/DC voltage measurement (With AC/DC automatic detection function) Use as a tester replacement thanks to DC voltage measurement functionality, which is useful in applications involving solar power and electric vehicles (EVs)