Resistance Testers 65 Items

65 Items

Resistance Testers

Resistance testers — also known as ohmmeters — are essential tools for verifying electrical safety and system reliability. From insulation resistance testers (megohmmeters) that measure extremely high resistances to low resistance ohmmeters (micro-ohmmeters) designed for precise low-ohm measurements, these instruments cover the full spectrum of resistance testing needs.

Resistance Testers
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AEMC 6240 Micro Ohmmeter Low Resistance Tester Product View
$3,429.50
AEMC 6536 True Megohmmeter Insulation Tester Product View
Special Price $1,054.50 Regular Price $1,110.00
AEMC 6534 Digital Megohmmeter Product View
$1,011.75
AEMC 6526 Digital Megohmmeter Product View
$897.75
AEMC 6522 Digital Megohmmeter Product View
Special Price $817.00 Regular Price $860.00
AEMC 6555 Megohmmeter High Voltage Tester Product View
$7,077.50
AEMC 6550 Megohmmeter Insulation Tester Portable Product View
$6,308.00
AEMC 5070 Graphical Insulation Megohmmeter Product View
$4,465.00
AEMC 5060 Megohmmeter Insulation Tester Product View
$3,591.00
AEMC 5050 Megohmmeter Insulation Tester Product View
Special Price $3,315.50 Regular Price $3,490.00
AEMC 6505 Megohmmeter Insulation Tester Product View
Special Price $2,859.50 Regular Price $3,010.00
AEMC 1060 Digital Analog Megohmmeter Product View
$2,512.75
AEMC 6529 Digital Megohmmeter Multimeter Product View
Special Price $341.05 Regular Price $359.00
AEMC 6527 Digital Megohmmeter Product View
Special Price $284.05 Regular Price $299.00
AEMC 6503 Hand Cranked Megohmmeter Product View
Special Price $646.00 Regular Price $680.00
AEMC 1015 Analog Megohmmeter Insulation Tester Product View
Special Price $883.50 Regular Price $930.00
Megger MIT1025 Insulation Resistance Tester Product View
$5,699.95
Megger DLRO 10X Digital Low Resistance Ohmmeter Product View
Megger MIT510 10kV Insulation Resistance Tester Product Accessories
$3,499.85
Megger DLRO100 Low Resistance Ohmmeter 100A Tester Quick Start Guide  All Accessories
$6,499.95
Amprobe AMB-45 Insulation Resistance Tester
Fluke SOL INS37 KIT Solar Insulation Testing Kit
Megger DLRO10 digital microhmmeter with P-Type duplex twist probes, 3 m hook termination leads, and hard transport case.
$2,499.95
Megger DLRO10 Digital Low Resistance Micro-Ohmmeters 1006-598

Resistance testers and ohmmeters play a vital role in electrical maintenance, troubleshooting, and compliance testing. By accurately measuring resistance across cables, windings, and connections, they help technicians identify weaknesses before they lead to failures, downtime, or safety hazards. Our lineup includes two primary categories: 

Insulation Resistance Testers (Megohmmeters)

These instruments apply high DC test voltages to measure very high resistance values, often in the megohm to teraohm range. As specialized ohmmeters, they are used to verify the integrity of insulation in cables, transformers, and motors, ensuring systems remain safe and dependable.

Low Resistance & Micro-Ohmmeters

These testers use high test currents and four-wire measurement techniques to capture very low resistance values down to micro-ohms. Also referred to as low-resistance ohmmeters, they are essential for checking the quality of breaker contacts, busbar joints, welds, and grounding bonds where reliable, low-resistance connections are critical.

Together, these resistance testers and ohmmeters provide complete coverage for both high-resistance and low-resistance applications, making them indispensable tools for utilities, industrial plants, and field service technicians.