A direct front studio shot of the Klein Tools ET600 multi-function megohmmeter and insulation resistance tester. The device features a large backlit LCD with a digital readout and analog bar graph, a professional rotary dial for selecting test voltages up to 1000V DC, and dedicated buttons for continuous lock and insulation testing.
A product infographic for the Klein Tools ET600 highlighting its insulation resistance testing capabilities up to 4000MΩ. Text callouts specify selectable test voltages of 125V, 250V, 500V, and 1000V DC, alongside technical icons for CAT IV 600V and CAT III 1000V safety ratings.
A close-up view of the ET600's dual-function backlit LCD screen. The high-contrast display is shown active, providing a clear readout of 2534 MΩ insulation resistance and 1073V DC test voltage, emphasizing the tool's precision in low-light industrial environments.
An action shot of the ET600 megohmmeter being used in a hands-free application. The device is supported by its integrated heavy-duty kickstand on a concrete surface, allowing a technician wearing safety gloves to monitor insulation resistance readings while managing the test leads.
A technical marketing graphic listing the contents of the ET600 insulation resistance tester kit. The image identifies the inclusion of the owner's manual, a protective carrying case, right-angle test leads, heavy-duty alligator clip leads, and six AA batteries.
A studio kit shot of the Klein Tools ET600 system. The professional diagnostic package includes the digital megohmmeter, a set of red and black safety-rated test leads, heavy-duty alligator clips, six AA alkaline batteries, and a zippered black and orange storage case.
A detailed front view of the ET600 tester with the rotary dial set to the 1kV insulation test position. The interface highlights the various diagnostic functions, including True RMS AC/DC voltage measurement, continuity, and resistance testing modes.
A back view of the Klein Tools ET600 highlighting the rugged industrial polymer housing. The image showcases the printed safety warnings in English and French, the secure battery compartment cover, and the attachment point for an optional magnetic hanger.
An angled perspective shot of the ET600 digital multimeter and megohmmeter with the integrated stand deployed. The ergonomic design and textured side grips are emphasized, showcasing the tool's professional build quality for field diagnostics.
A close-up view of the heavy-duty alligator clip test leads included with the ET600. The professional-grade red and black leads feature right-angle safety connectors and large, insulated clips designed for secure attachment to motor terminals and electrical busbars.
Detailed view of the Klein Tools right-angle test leads bundled together. These high-quality red and black silicone leads feature shrouded safety plugs and sharp stainless steel tips, rated for use in CAT III and CAT IV electrical environments.
Action shot showing a technician holding the ET600 megohmmeter while diagnosing a large copper conductor in an industrial panel. The meter displays a real-time insulation resistance value of 2534 MΩ, demonstrating the tool's high-sensitivity sensing capabilities.
A ground-level application shot of the ET600 tester standing on its kickstand during a field test. The image illustrates the ease of viewing the backlit display from an angle while the technician performs electrical maintenance in a mechanical room.
A professional application shot showing the ET600 megohmmeter suspended by a magnetic hanger inside a heavy-duty electrical cabinet. The meter is shown connected to thick gauge industrial wiring, monitoring a test voltage of 1073V DC.
An action shot of a technician wearing high-voltage safety gloves using the ET600 test probe on an industrial busbar. The meter is displaying a resistance reading of 4000 MΩ, proving the maximum range of the insulation resistance testing function.
Klein Tools' Insulation Resistance Tester ET600 promotional how to video
A direct front studio shot of the Klein Tools ET600 multi-function megohmmeter and insulation resistance tester. The device features a large backlit LCD with a digital readout and analog bar graph, a professional rotary dial for selecting test voltages up to 1000V DC, and dedicated buttons for continuous lock and insulation testing.
A product infographic for the Klein Tools ET600 highlighting its insulation resistance testing capabilities up to 4000MΩ. Text callouts specify selectable test voltages of 125V, 250V, 500V, and 1000V DC, alongside technical icons for CAT IV 600V and CAT III 1000V safety ratings.
A close-up view of the ET600's dual-function backlit LCD screen. The high-contrast display is shown active, providing a clear readout of 2534 MΩ insulation resistance and 1073V DC test voltage, emphasizing the tool's precision in low-light industrial environments.
An action shot of the ET600 megohmmeter being used in a hands-free application. The device is supported by its integrated heavy-duty kickstand on a concrete surface, allowing a technician wearing safety gloves to monitor insulation resistance readings while managing the test leads.
A technical marketing graphic listing the contents of the ET600 insulation resistance tester kit. The image identifies the inclusion of the owner's manual, a protective carrying case, right-angle test leads, heavy-duty alligator clip leads, and six AA batteries.
A studio kit shot of the Klein Tools ET600 system. The professional diagnostic package includes the digital megohmmeter, a set of red and black safety-rated test leads, heavy-duty alligator clips, six AA alkaline batteries, and a zippered black and orange storage case.
A detailed front view of the ET600 tester with the rotary dial set to the 1kV insulation test position. The interface highlights the various diagnostic functions, including True RMS AC/DC voltage measurement, continuity, and resistance testing modes.
A back view of the Klein Tools ET600 highlighting the rugged industrial polymer housing. The image showcases the printed safety warnings in English and French, the secure battery compartment cover, and the attachment point for an optional magnetic hanger.
An angled perspective shot of the ET600 digital multimeter and megohmmeter with the integrated stand deployed. The ergonomic design and textured side grips are emphasized, showcasing the tool's professional build quality for field diagnostics.
A close-up view of the heavy-duty alligator clip test leads included with the ET600. The professional-grade red and black leads feature right-angle safety connectors and large, insulated clips designed for secure attachment to motor terminals and electrical busbars.
Detailed view of the Klein Tools right-angle test leads bundled together. These high-quality red and black silicone leads feature shrouded safety plugs and sharp stainless steel tips, rated for use in CAT III and CAT IV electrical environments.
Action shot showing a technician holding the ET600 megohmmeter while diagnosing a large copper conductor in an industrial panel. The meter displays a real-time insulation resistance value of 2534 MΩ, demonstrating the tool's high-sensitivity sensing capabilities.
A ground-level application shot of the ET600 tester standing on its kickstand during a field test. The image illustrates the ease of viewing the backlit display from an angle while the technician performs electrical maintenance in a mechanical room.
A professional application shot showing the ET600 megohmmeter suspended by a magnetic hanger inside a heavy-duty electrical cabinet. The meter is shown connected to thick gauge industrial wiring, monitoring a test voltage of 1073V DC.
An action shot of a technician wearing high-voltage safety gloves using the ET600 test probe on an industrial busbar. The meter is displaying a resistance reading of 4000 MΩ, proving the maximum range of the insulation resistance testing function.
Klein Tools' Insulation Resistance Tester ET600 promotional how to video
KLEIN TOOLS

Klein Tools Megohmmeter ET600 Insulation Resistance Tester 1000V True RMS Multimeter (4000M Ohm Selectable DC Test Voltages Alligator Clip Leads)

In stock
SKU: ET600
$199.97 USD

Description

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Verify Winding Insulation Integrity And Identify High Resistance Insulation Breakdown Instantly With Multi Voltage Megohmmeter Diagnostics

The Klein Tools ET600 is a solid-state multi-function megohmmeter engineered for evaluating structural insulation resistance up to 4000MΩ across industrial electrical machinery components. This diagnostic instrument produces four selectable test potentials including 125V, 250V, 500V, and 1000V DC while doubling as a True RMS automatic ranging multimeter for line drops up to 1000V AC/DC. Operating under a certified CAT III 1000V safety profile, the device incorporates a dedicated continuous lock button for long-duration testing, a 4000-count backlit LCD bar graph display, and automated live voltage warning alarms to identify phase failures before system breakdowns occur.

Best Used For:

  • Motor Winding Evaluations: Injecting high-potential DC testing streams into industrial motor coils, compressors, and generator windings to track dielectric breakdown paths.
  • Wire Run Certifications: Mapping insulation resistance properties across newly pulled building distribution wire strands inside metal conduit arrays.
  • Industrial Panel Maintenance: Sweeping main supply buses, switchgears, and heavy distribution transformers for active current leakage during preventive electrical safety audits.

Key Performance & Safety Features

  • Selectable Multi-Voltage Output: Generates distinct DC testing potentials at 125V, 250V, 500V, and 1000V benchmarks to accommodate various equipment isolation tiers.
  • True RMS Multimeter Mode: Integrates auto-ranging TRMS diagnostic metrics to clear waveform distortion anomalies during up to 1000V AC/DC line checks.
  • Continuous Lock Automation: Dedicated lock toggle preserves constant active voltage generation to streamline long-duration dielectric tracking tests.
  • High-Contrast Display Telemetry: Backlit 4000-count screen populates simultaneous analog bar graphs, min/max logging matrices, and active high-voltage alerts.
  • Automated Hazard Protection: Live voltage tracking circuitry monitors testing nodes and sounds audible alarms if an active energized branch line is hooked.
  • Dual Certified Safety Profile: Built to strict CAT IV 600V and CAT III 1000V commercial classification levels to protect field mechanics on major service panels.

What's Included

  • ET600 Multi-Function Megohmmeter Insulation Tester
  • Set of Right-Angle CAT III/CAT IV Safety Rated Test Leads
  • Set of Heavy-Duty Alligator Clip Test Leads
  • Six AA Alkaline Batteries
  • Custom Carrying Case
  • Instruction Manual

Technical Specifications

Diagnostic Instrument Type: Insulation Resistance Megohmmeter Multimeter
Insulation DC Test Voltages: 125V, 250V, 500V, 1000V DC
Voltage Measuring Bounds: Up to 1000V AC/DC (True RMS Evaluation)
Industrial Safety Classification: CAT IV 600V / CAT III 1000V
Display Interface Profile: 4000 Count Backlit LCD with Digital Bar Graph
Maximum Multimeter Resistance: 400kΩ
Maximum Insulation Scale: 4000MΩ
Power Source Requirements: 6 x AA Alkaline Batteries
Chassis Overall Length: 7.93 in.
Chassis Overall Width: 3.59 in.
Chassis Overall Height: 2.32 in.
Net Instrument Weight: 22.4 oz.
Pro-Tip: When running high resistance sweeps on massive industrial motor frames, discharge the residual capacitive storage loop fully before releasing the clip jaws; this ensures circuit normalization and safeguards the logic tracking elements against back-emf strain.