Best Insulation Resistance Meters of 2025

The Supco M500 Tester is a portable device designed to measure insulation resistance values up to 1000 megohms at 500 VAC. This feature is essential for ensuring the safety and efficiency of electrical systems. With its zone scale, you can easily determine the insulation condition, helping you make informed decisions about maintenance. The compact design allows for easy handling, making it convenient to use in various settings. Additionally, the test leads can be neatly stored in the carrying case, reducing the risk of loss or damage. Just remember, it operates on two C batteries, which are not included.

BTMETER Insulation Resistance Tester is a versatile tool with key features. It supports testing insulation resistance at 3 different voltages, displays specific values accurately, and functions as a digital multimeter. The device ensures safety with high voltage and short circuit alarms, making it reliable for various insulation tests. The easy-to-read LCD screen and data hold button enhance usability, especially in low-light conditions. Lightweight with essential accessories, this tester is ideal for quick electrical checks.

The Fluke 1503 Insulation Resistance Tester is a high voltage digital megohmmeter with adjustable test voltages for measuring insulation resistance, leakage current, capacitance, and voltage. It automatically calculates PI and DAR for detailed indication of insulation condition, and can perform timed tests up to 99 minutes and store up to 99 test results. It meets EN safety standards and is rated for CAT IV installations to 600V and CAT III installations to 1,000V.

The LEAGY VC60B+ Insulation Resistance Tester is a versatile tool for electricity and household maintenance. It features a wide range of measurement capabilities, including voltage measurement from 250V to 1000V, resistance measurement from 0.1MΩ to 5GΩ, and DC/AC voltage measurement from 20V to 1000V and 20V to 750V respectively. With its range selection and accurate readings, this tester is perfect for measuring insulation resistance in various electrical equipment and materials. The large LCD screen with backlit display ensures clear visibility even in low light environments, and the option to power the instrument with batteries or an external power source adds convenience. Additionally, the low battery warning display and automatic power-off feature enhance safety and efficiency. With its strap design, the LEAGY VC60B+ can be easily carried around for operation, making it suitable for a wide range of environments.

The VC60B Digital Insulation Resistance Tester is a high-quality instrument that is perfect for professionals in the insulation resistance testing field. With its backlight LCD screen display and max reading of 1999, it is convenient and practical to use. Its measuring key lock function, insert prompt symbol, and protection function make it a durable and reliable product. It offers a measure range of 200MΩ/2GΩ resistance (resolution 0.1MΩ/1MΩ) and AC 750V voltage (resolution 1V), making it suitable for a wide range of applications. The product's size is 7.28 x 4.53 x 2.56 in, and it weighs about 1.1 lb.

The AIOMEST VC60B Megohmmeter is a versatile tool designed for insulation resistance testing. It offers selectable test voltages of 250V, 500V, and 1000V, allowing you to effectively assess insulation in various electrical equipment. You can also measure both AC and DC voltage, enhancing its functionality for different applications. The device features an over-range indicator for easy range adjustments and a backlit display for visibility in dimly lit areas. With a fast sampling rate and data hold function, you can quickly capture and save important readings, making your testing process more efficient.

The UEi IRT807 Tester offers a broad voltage testing range from 50V to 1000V and accurately measures insulation resistance from 0.01MΩ to 2GΩ. This precision is crucial for ensuring safety in electrical systems. With a high safety rating, it protects you from electrical hazards. The easy-to-read LCD display, equipped with a backlight, allows you to work in dim conditions effortlessly. Additionally, the automatic calculation features save you time by providing essential indexes, making your testing process more efficient.

The Insulation Resistance Tester with LCD Display (UT501A) is a professional resistance tester suitable for electricity and home maintenance. With a voltage output of 1000V and a maximum range of 5GΩ, it is designed for measuring insulation resistance of electrical equipment and insulating materials such as transformers, motors, cables, switches, electrical appliances, and more. The high-definition LED large-screen display, automatic backlight, and data retention function ensure accurate readings and easy operation, even in dark environments. Additionally, the tester has a low battery warning display, automatically shuts down after 10 minutes without operation, and has a long battery life.

The AIOMEST Insulation Tester is a versatile tool designed for measuring insulation resistance and voltage. With five selectable output voltages, you can accurately assess insulation from 0.1MΩ to 20GΩ, making it ideal for testing various electrical equipment. It also features data storage capabilities, allowing you to save and manage up to 100 measurement sets easily. Additionally, this device functions as an AC/DC voltmeter, enabling you to check voltage levels from 10V to 600V. Its advanced testing options, like PI and DAR, help you evaluate insulator quality effectively, ensuring reliable performance in your electrical work.

The KKnoon Insulation Tester is a versatile device designed for measuring insulation resistance and voltage in various electrical applications. With its automatic voltage release function and a wide resistance range of 1MΩ to 200GΩ, you can easily assess the integrity of electrical equipment. The tester also measures AC and DC voltages from 10V to 600V, allowing you to quickly switch between settings. Its user-friendly design includes a large backlit LCD screen, making it easy to read measurements even in low light. Additionally, the device offers data storage for up to 100 sets of readings, helping you keep track of important measurements efficiently.