Fluke Insulation Testers
Discover essential features and benefits of top fluke insulation testers to enhance your electrical projects. Read on to make an informed choice!
Find out more about Fluke Insulation Testers below.


- Insulation resistance measurements up to 20MΩ
- Voltage and earth resistance measurements
- 500V and 1000V test voltages


- Perform repetitive tests using the 'Compare' feature
- Ships with remote test probe, test leads and alligator clips
- Battery lasts for up to 1000 high voltage tests


- Both a digital multimeter and an insulation tester
- Fluke Connect enabled - wirelessly interface with a smartphone for data storage and more
- Ideal for preventative maintenance and troubleshooting


- Includes 1587 insulation multimeter + i400 AC current clamp
- Test everything with one comprehensive instrument
- Also comes with carrying case and other accessories


- Includes 1587 FC insulation tester/multimeter, i400 AC current clamp and 62 MAX+ Infrared thermometer
- Also comes with test leads and carrying case
- Prevent downtime and test with ease


- Includes 1587 insulation multimeter, 9040 phase rotation indicator and i400 AC current clamp
- Ideal for preventative maintenance and troubleshooting applications
- Also supplied with test leads, carrying case and other accessories
About Fluke Insulation Testers
Fluke insulation testers, also known as megohmmeters, are instruments designed to evaluate the integrity of electrical insulation in equipment such as motors, generators, cables, and switchgear. By measuring insulation resistance, they help identify potential issues like current leakage or deteriorated insulation, which could lead to equipment failure or safety hazards.
Operating a Fluke insulation resistance tester involves connecting the test leads to the equipment under test and selecting the appropriate test voltage. The device then applies this voltage to measure the resistance of the insulation. Features like live circuit detection prevent tests if voltage over 30 V is detected, enhancing user safety. Additionally, automatic discharge of capacitive voltage and large backlit displays contribute to ease of use. Some include a remote test probe that allows for easy testing in hard-to-reach areas and features such as Compare mode for efficiently performing repetitive tests.
Fluke insulation testers are utilised across various industries for:
- Preventive Maintenance: Regular testing of insulation resistance to detect degradation over time, preventing unexpected equipment failures.
- Troubleshooting: Identifying insulation faults that may cause operational issues or safety hazards.
- Commissioning: Ensuring new installations meet required insulation standards before being put into service.
- Quality Assurance: Verifying the integrity of insulation in manufactured electrical components and systems.