Ohmmeters- Resistance Testers

380460_380462-s2An ohmmeter is an electrical device used to determine the resistance against a current flowing through an electrical component. This measurement is done by applying a voltage through the material and determining what current the resistance allowed through; a simple concept that was made more accurate through the use of Kelvin measurements, also called 4 terminal testing. This method applies a voltage through two of the terminals and uses the remaining two to measure the resulting current. Kelvin clips are included with many of the ohmmeters for highly accurate measurements.

Ohmmeters are used for circuit board design and calibration as well as repair of electrical systems. When designing an electrical system resistance must be determined to know the exact voltage needed for efficient functioning.

Ohmmeters- Resistance Testers

Results 1 - 13 of 13

Extech Analog Megohmmeter High Voltage - 380320

The Analog Megohmmeter is designed to work with high voltages with a CAT III-600V safety rating and resistance measurements up to 500 ohms. Also measures voltage and continuity.
 
Sales price: $209.99
SKU: 380320
 
 
 
 
 

Extech Earth Ground Resistance Tester Kit - 382252

The Earth Ground Resistance Tester Kit measures ground resistance in 20, 200 and 2000 ohm ranges. With conductive probes for testing in the soil and test leads for a complete testing kit.
 
Sales price: $249.99
SKU: AGS-382252
 
 
 
 
 

Extech Digital Megohmmeter High Voltage - 380360

The Digital Megohmmeter is designed to work with high voltages with a CAT III-600V safety rating and insulation resistance tests up to 2000 Megohms. Also measures voltage and continuity.
 
Sales price: $249.99
SKU: 380360
 
 
 
 
 

Extech Digital Megohmmeter High Voltage Handheld - 380260

The Digital Handheld Megohmmeter is designed to work with high voltages with a CAT III-600V safety rating and insulation resistance tests up to 2000 Megohms. Also features an AC voltage test.
 
Sales price: $249.99
SKU: 380260
 
 
 
 
 

Extech Digital Insulation Tester - 380363

The Extech Digital Insulation Tester gives an autoranging insulation measurement up to 10G ohms. With the ability to store and recall 9 data sets for future review. Also featuring AC DC voltage test.
 
Sales price: $289.99
SKU: 380363
 
 
 
 
 

Extech Precision Portable Milliohm Meter - 380460

This precise and portable Milliohm meter was designed to be lightweight and portable while still providing highly accurate measurements in 5 different ranges.
 
Sales price: $419.99
SKU: 380460
 
 
 
 
 

Extech Digital Insulation Tester Data Logging - 380366

The Extech Digital Insulation Tester gives an autoranging insulation measurement up to 4000M ohms. With the ability to store and recall 16,000 readings and download to a PC.
 
Sales price: $509.00
SKU: 380366
 
 
 
 
 

Extech Milliohm Meter High Resolution Bench Top - 380560

This bench top milliohm meter features a high resolution and a high accuracy. With a broad range from 20 milliohms to 20 k ohms. Great for testing circuits and components of circuit boards.
 
Sales price: $529.00
SKU: 380560
 
 
 
 
 

Extech Milliohm Meter 4 Terminal Field Use - 380580

This Milliohm meter features a high resolution and 4 terminal kelvin measurements. Built for use in the field with a water resistant casing yet with a highly accurate testing ability.
 
Sales price: $549.00
SKU: 380580
 
 
 
 
 

Extech Ground Resistance Tester Kit 4-Wire - GRT300

This ground resistance test kit features up to 4 point testing for a better resistance picture. With a large range from 2 to 2000 ohms this test kit encompasses all earth resistances typically found.
 
Sales price: $999.99
SKU: GRT300
 
 
 
 
 

Extech Digital Insulation Tester High Voltage - 380395

This high voltage digital insulation tester is specially designed to test insulation resistance up to 60G ohms. Also with the ability to test up to 5000V. With a dual bar graph and LCD display.
 
Sales price: $1,029.00
SKU: 380395
 
 
 
 
 

Extech Ground Resistance Tester Clamp On - 382357

This clamp meter gives a non-contact measurement of ground resistance without the need for ground spikes. With a highly accurate resolution of 0.002 ohms and a large resistance range of 0.025 to 1500...
 
Sales price: $1,359.00
SKU: 382357
 
 
 
 
 

Extech Micro-Ohm Meter High Resolution - UM200

This meter features an extremely high resolution up to 1 micro-ohm. Great for highly precise circuit board design and component testing. A must have for high precision devices.
 
Sales price: $2,099.00
SKU: UM200