Top 10 Best megger in 2026

Last Updated - 6/9/2026

🏆Best Choice

KLEIN TOOLS

Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resistance, 125V/250V/500V/1000V, Auto-Ranging TRMS Multimeter

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•INSULATION RESISTANCE TESTING: The Voltage Tester measures insulation resistance up to 4000MΩ at 125V, 250V, 500V, and 1000V DC, ensuring thorough insulation testing
•SIMPLE TESTING: Equipped with test and lock buttons, the Megohmmeter provides easy and straightforward insulation testing for efficient electrical diagnostics
•VOLTAGE DETECTION: The warning alarm and high voltage icon on the tester enable the detection of voltage, enhancing safety during electrical testing
•MULTIPLE MEASUREMENTS: Measure up to 1000V AC/DC, resistance, and continuity, offering versatile functionality for comprehensive electrical measurements
•ACCURATE RESULTS: Automatic ranging True Root Mean Square (TRMS) technology ensures increased accuracy in measurements, delivering precise and reliable results
•USER-FRIENDLY FEATURES: The backlit display with a bar graph, along with icons for Auto-power off, High Voltage, Max/Min, and Hold, enhances usability and readability
•BATTERY INDICATOR: The low battery indicator alerts users when the battery is running low, and the easily replaceable battery and fuse ensure convenient maintenance and uninterrupted testing

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$155.09

$199.97

-22%

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Supco

Supco M500 Insulation Tester/Electronic Megohmmeter with Soft Carrying Case, 0 to 1000 megohms Black

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Measure insulation values up to 1000 me ohms at 500 VAC
•Zone scale to indicate insulation condition
•Hand held
•Test Leads store in case
•Operates on 2 C batteries (not included)

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$95.59

$110.44

-13%

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FUHUOLU

M500 Insulation Tester MEGOHMMETER, Compatible with Supco M500 Electronic Megohmmeter, Multimeter Tester, Compressor Tester HVAC, Battery Operated, 1000 Megohms at 500 Volts, with Soft Carrying Case

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Precise Insulation Testing, Ensure Electrical Safety：The M500 megohmmeter (compatible with Supco M500) measures insulation resistance up to 1000 megohms at 500V AC. Works for motors, transformers, HVAC systems，quickly detects defects. A must for pros/DIYers using hvac tools
•Intuitive Display, Efficient Operation：Built-in resistance scale shows insulation status (Good/Normal/Risk) clearly. No complex analysis，judge equipment health fast, simplify tests. A top megger for Insulation Testing, ideal for hvac users
•Durable Design, Tackle Harsh Environments：Double sided ABS housing resists impacts/wear. Endures collisions/friction, suits tough HVAC tasks. Cut maintenance costs, use long，term worry ，free perfect for hvac tools and megger testing
•Portable & Easy Use, Flexible Storage：Comes with soft case for 6 inch leads & meter. Battery powered (2 “C” not included). Clear manual，do Insulation Testing anywhere. Convenient for on site work with hvac tools
•Wide Applications, Core for Professional Testing：Designed for HVAC, motors, transformers. Covers motor winding tests, compressor tester HVAC, panel/relay checks. Essential for electrical inspection，integral to hvac kits and megger testing with M500 (500V)

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$74.99

$84.99

-12%

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oiuebxe

Sup-co M500 Megohmmeter for Insulation Testing，Compatible with Supco M500 Electronic Megohmmeter，Will accurately Measure Insulation Values up to 1000 Megohms at 500 Volts

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Indicator Range:20 To 1000 megohms
•Applied Voltage:500 Volts
•Power Source:"c" Size Batteries (not included)
•Back Panel：Removable For Test Lead Storage（6‘’ Long test leads）
•Soft carrying case and operating manual included
•m500 megohmmeter

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$74.99

$84.99

-12%

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Fluke

Fluke 1587 FC 2-in-1 Insulation Multimeter, True-RMS, Selectable Insulation Test Voltages Up To 1000 V, Pi/DAR Timed Ratio Tests, Measures Frequency, Includes Low-Pass Filter For Motor Drive VFD

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•PI (polarity index) /DAR (dielectric absorption ratio) with Trend It graphs identifies problems faster
•Memory storage through mobile Fluke Connect Measurements App eliminates writing down results, reduces errors and saves data for historical tracking over time
•Temperature Compensation through App helps establish accurate baselines and relevant historical comparisons
•VFD low pass filter for accurate motor drive measurements; Includes auto discharge of capacitive voltage for added user protection
•Insulation test voltages 50 V, 100 V, 250 V, 500 V, 1000 V

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$875.86

$1038.99

-16%

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UEi Test Instruments

UEi IRT807 Insulation Resistance Tester 1000V AC/DC, Advanced Megohmmeter Measures Insulation Resistance Up to 2GΩ, Voltage Testing Up to 1000V

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Wide Testing Range & Very Accurate – The IRT807 provides voltage testing at 50V, 100V, 250V, 500V, 1000V with a range of 0.01MΩ-2GΩ. The IRT807 provides highly accurate readings with an accuracy of ±1.5-3% + 5 digits when measuring between 0.01MΩ-500MΩ.
•High Safety Rating – The IRT807 is CATIV rated up to 600V, and CATIII up to 1000V to guarantee you are well protected on the jobsite
•Great Design – Easy to read LCD Display with backlight and a work light to illuminate dark environments. The unit also includes a durable protective rubber boot with a kickstand to ensure ease of use. The rubber boot also includes test lead holders for compact storage. Auto power off to save battery
•Efficient Features – Save time with automatic calculation of polarization index (PI) and dielectric absorption ratio (DAR). Versatile reading options including, Hold, Zero, Lock, and Compare
•Complete Kit – The IRT807 comes with everything you need. The insulation test kit includes Silicone test leads with alligator clips, insulation test probe with alligator clips, a K-Type thermocouple, a soft carrying case, and 4 AA batteries

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$119.99

$148.75

-19%

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Fluke

Fluke 1507 Digital Megohmmeter Insulation Resistance Tester, For Advanced Industrial and Electrical Insulation Testing, Offers Multiple Insulation Test Voltages: 50 V, 100 V, 250 V, 500 V, and 1000 V

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Repetitive or hard-to-reach testing is easy with the remote test probe
•Live circuit detection prevents insulation test if voltage greater than 30-Volts is detected for added user protection
•Read measurements easily with large, backlit display
•Save both time and money with automatic calculation of polarization index and dielectric absorption ratio
•Make repetitive tests simple and easy with the 1507's Compare (Pass/Fail) function
•Repetitive or hard-to-reach testing is easy with the remote test probe
•Live circuit detection prevents insulation test if voltage greater than 30-Volts is detected for added user protection
•Read measurements easily with large, backlit display

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$706.98

$856.99

-18%

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UNI-T

UNI-T 1000V Megohmmeter Insulation Megger Tester, Ground Resistance Tester Meter 0 Megohm to 5.5GΩ with AC 100V/250V/500V Testing Voltage & LCD Display Backlight(UT501A)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•1.MULTI-FUNCTIONAL INSULATION TESTER--UT501A insulation resistance tester can measure insulation resistance, AC voltage, etc
•2.HIGH ACCURACY AND STABLE PERFORMANCE DIGITAL EARTH RESISTANCE TESTER--This insulation resistance tester megohmmeter have high degree of accuracy, stable performance, easy operation and reliability
•3.MULTI-FUNCTIONAL AND ECONOMICAL SUPPORTS EASIER OPERATION--The 1000v megohmmeter supports automatic measurement, low battery indication, LCD backlight, alarm light display, alarm buzzer
•4.WIDELY APPLICATIONS FOR DAILY USE-- The insulation tester is widely used for insulation resistance measurement for insulation materials and various kinds of electric equipments such as transformer, electric machines, cables, switches, electrical appliances
•5.IDEAL TOOL FOR ELECTRICAL EQUIPMENT TESTING AND INSPECTING--The insulation tester megohmmeter is a ideal tool for electric equipment maintenance, testing and inspection
•6.BEST CUSTOMER SERVICE-- We provide 30 days unconditional return, 6 months worry-free warranty and friendly customer service, if you need technical support and any problems with the megohm meter, please contact us any time,we deal with in 24hours.

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$79.99

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KKnoon

MH13 250V-2500V Digital Insulation Resistance Tester 1MΩ-200GΩ Megger Megohm Testing Meter Auto Range 2000 Counts LCD Display 10V~600V AC/DC Voltmeter with 100 Data Storage

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•⭐Insulation Resistance Tester: this instrument applies automatic voltage release function, with high stability and reliability, features maximum 2000 counts, 100 groups of data storage, and 1MΩ-200GΩ insulation resistance measuring range.
•⭐AC/DC Voltage Measuring: rated output voltage is variable, easy to switch between 250V/ 500V/ 1000V/ 2000V/ 2500V through the up/ down button. It can measure AC and DC voltage with the range of 10V-600V. Battery operated, with large digital LCD backlit display, easy to read.
•⭐Solve Practical Problems: it is suitable for measuring the insulation resistance of various electrical equipment and insulating materials such as transformers, motors, cables, switches, electrical appliances, etc. It is suitable for maintenance, repair, test and etc..
•⭐Safe Operation, Portability: high voltage indication to remind you of safe operation; low battery indication to remind you of replacing batteries in time. The instrument has fashionable appearance and stable performance. Dustproof and moisture-proof construction fits for outdoor use. Comes with a zipper storage bag for easy storage and portability.
•⭐Data Hold & Data Storage: with data hold function for conveniently data checking, and it can store up to 100 set of the measured insulation resistance value, the data browse and delete also can be operated easily.
•⭐Large LCD Screen & Easy to Control: soft push buttons is easy to operate, the large LCD display screen with bright backlight, convenient to check the measured data at a glance even in the dark environment. Silicone Protective Case: protected with a soft silicone cover, you can use the meter at various condition without worrying it from falling down or scratch by hardware

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$79.99

$83.99

-5%

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Megger

Megger MIT310-EN Digital/Analog Insulation Tester, 250/500/1000 V Test Voltage

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Extremely easy to use
•Tough rubber armoured case
•Self contained protective cover
•Live circuit warning, weatherproof to IP54; three-year warranty
•Intelligent safety system for protection; calibration certificate

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$854.96

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