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Megohmmeters, also known as insulation resistance testers, are essential for verifying the condition of electrical insulation in cables, motors, and transformers. Our selection includes megohmmeters from trusted brands like Fluke, Megger, and AEMC, giving professionals trusted options for high-voltage resistance testing.
The AEMC 6555 is a 15kV digital megohmmeter for insulation testing on motors, cables, and electrical apparatus. It supports fixed/variable voltage tests, step and ramp profiles, automatic DAR/PI/DD ratios, on-screen graphs, and USB/DataView reporting with storage for up to 80,000 points.
AEMC 6505 Megohmmeter: Portable insulation tester with digital and analog bargraph, auto DAR/PI, backlight, and 500V to 5000V test voltages.
AEMC 6550 Megohmmeter: Portable 10,000 V insulation resistance tester with graphical display, USB, backlight, alarm, and DataView® software included.
AEMC 5070 Graphical Insulation Megohmmeter: Automated 5000V insulation testing with graphical display, programmable voltage, USB, and DataView® software included.
Megger MIT1025 Insulation Tester: Measure insulation resistance up to 10kV with advanced diagnostics. Fast, reliable, and built for high-performance testing.
Megger MIT525 insulation resistance tester applying DC test voltages to 5 kV for evaluation of electrical insulation in cables, motors, transformers, and switchgear. Supports IR, timed IR, DAR, PI, dielectric discharge, stepped voltage, and ramp tests with onboard memory and USB data transfer.
The Fluke 1587T Insulation Multimeter combines a digital insulation tester with a true-rms digital multimeter in one handheld instrument. Designed for telecom applications, it provides 50 V and 100 V insulation test voltages along with AC/DC voltage, millivolt, milliamp, resistance, and continuity measurements.
Fluke 1535 Insulation Resistance Tester delivers 250V–2500V testing with insulation measurements up to 500 GΩ. Designed for industrial and solar environments with CAT IV 600V safety and automatic PI/DAR calculations.
Fluke 1555 FC KIT insulation resistance tester delivers digital testing up to 10 kV with IR3000FC wireless connectivity, onboard data storage, and advanced diagnostic measurements for high-voltage electrical assets.
Amprobe AMB-45 insulation tester provides 250 V, 500 V, and 1000 V testing with data logging, PC connectivity, and built-in voltmeter.
Fluke 1550C KIT Insulation Resistance Tester delivers up to 5 kV testing with adjustable test voltages: 50 V increments up to 1000 V and 100 V steps for test voltages over 1,000. Includes DAR results, rugged IP67 case, and long battery life for field use.
Fluke 1550C Insulation Resistance Tester delivers digital insulation testing up to 5 kV with DAR/PI calculations, long battery life, and Fluke Connect support.
Fluke 1555 FC insulation tester delivers up to 10 kV testing with data storage, leakage current measurement, and enhanced CAT IV safety.
Fluke 1555 FC insulation tester delivers up to 10 kV testing with Fluke Connect remote operation, PI/DAR calculations, and CAT IV safety ratings.
Fluke SOL-INS37-KIT enables fast 1500V PV I-V curve testing and 2500V insulation checks with advanced modeling, wireless sensing, and high-efficiency module capability.
Certified pre-owned Megger MIT1025: 10 kV insulation resistance tester designed for high-voltage equipment diagnostics. It delivers fast, stable readings up to 20 TΩ, supports PI/DAR testing, and includes advanced filtering for noisy environments—ideal for substations, motors, cables, and transformers.
Fluke 1503 insulation tester delivers reliable 500V/1000V resistance testing up to 2 GΩ with live circuit detection, continuity testing, and user-safe auto-discharge.
Fluke 1587 MDT FC kit combines insulation testing, True-RMS multimeter functions, AC current measurement, and phase rotation checks for advanced motor diagnostics.
Fluke 1507 insulation tester delivers advanced megohm measurements, multiple test voltages, PI/DAR calculations, and safety features for industrial electricians.
Fluke 1503/EX LEAD insulation tester kit with 50ft lead and remote probe for fast, safe insulation resistance testing up to 2000MΩ at 500V or 1000V.
The Fluke 1587KIT/62MAX+ pairs a 1000 V insulation multimeter with a precision infrared thermometer for comprehensive electrical maintenance and insulation testing. Ideal for diagnosing motor windings, transformers, switchgear, and high-voltage circuits.
The Fluke 1555/KIT is a premium insulation resistance tester kit offering up to 10 kV test voltage, wireless connectivity, and advanced measurement functions (DAR, PI). Designed for use in switchgear, motors, cables, and generators.
Fluke 1577 combines insulation testing and true-RMS multimeter features for motors, generators, cables, and switchgear troubleshooting.
Fluke 1587 FC Multimeter: Wireless insulation testing with live circuit detection, data logging, and app-based remote monitoring.
AEMC 6536 True Megohmmeter with variable 10-100V insulation testing, digital & analog display, continuity, resistance, and voltage measurements.
Megohmmeters apply a controlled, high DC test voltage to measure the resistance of insulating materials, typically in the megohm to teraohm range. By identifying weak or deteriorating insulation before failure, they help prevent costly downtime, equipment damage, and safety hazards. Our lineup covers the following leading manufacturers in insulation resistance testing.
Megger is one of the most recognized names in resistance testing, with a legacy that gave rise to the term “megohmmeter.” Their insulation testers are built for reliability in the field, with features like automatic discharge of test voltage, live-circuit detection, and advanced options such as the PI Predictor™ for faster trend analysis. From compact handheld units to high-voltage models, Megger insulation testers are trusted worldwide for accurate, safe, and efficient testing.
Fluke delivers rugged, user-friendly insulation testers designed for professionals who need precision on the job. Their handheld models offer selectable test voltages, PI and DAR calculations, and measurement ranges up to 2,500 V, making them ideal for industrial and utility environments. Fluke insulation testers are known for durability and consistency, ensuring reliable readings in tough field conditions.
AEMC's True Megohmmeter® line combines precision measurement with advanced features for comprehensive insulation testing. Many models include programmable test voltages, step and ramp profiles, automated PI/DAR functions, and data connectivity for reporting and analysis. AEMC megohmmeters are built for demanding applications, from lab testing to rugged fieldwork, providing accurate results even at very high resistance levels.