Best Ohmmeters of 2025

The Supco M500 Tester allows you to measure insulation values up to 1000 megohms at 500 VAC, ensuring you can assess the safety and reliability of electrical systems. Its zone scale provides a clear indication of insulation condition, helping you identify potential issues quickly. Being hand-held adds convenience, making it easy to use in various settings. Plus, the test leads can be conveniently stored in the case, so you won't misplace them during your work.

The INFURIDER YF-VC60B+ is a professional insulation tester that measures voltage from 250V to 1000V and resistance up to 2000MΩ, making it essential for a variety of electrical systems. Its high-definition LCD display with backlight allows you to easily read measurements, even in dim conditions. The lightweight design features a protective cover and adjustable shoulder strap for convenient handling and portability. This versatile device is ideal for testing insulation in electric machines, cables, and electronic equipment, ensuring your systems remain safe and functional.

The Extech EXT380260 Megohmmeter is a powerful datalogging power analyser, capable of storing up to 30,000 sets of measurements. You can easily monitor single-phase, three-phase/three-wire, or three-phase/four-wire systems, making it versatile for various applications. The large backlit LCD displays up to 35 parameters simultaneously, including MW, kVAR, MVA, and power factor, along with the voltage and current of all three phases. This feature enables you to obtain comprehensive readings at a glance, enhancing your efficiency during testing and analysis.

The Walfront BM500A Tester is a highly efficient digital insulation resistance tester designed for accurate measurements. Constructed from high-quality ABS material, it ensures durability while providing reliable results. With a measurement range of up to 1999MΩ and a sampling rate of 2.3 times per second, you can expect quick and precise readings. Its compact structure makes it easy to carry, allowing you to conduct tests anytime, anywhere. Ideal for maintenance and inspection of various electrical equipment, this tester brings convenience and reliability to your electrical tasks.

The Tuopuke 521 TAB Mini is an essential tool for coil DIY enthusiasts, enhancing safety while building coils. Its compact design ensures ease of use, allowing you to work comfortably without taking up too much space. The added battery level indicator lets you monitor power efficiently, so you can avoid interruptions during your projects. With a USB charging port, you can conveniently recharge the device, ensuring it’s always ready when you need it. High temperature protection safeguards your components, giving you peace of mind while experimenting.

The BE-TOOL VCB60+ offers a range of features to enhance your insulation testing experience. With its dual alarm system, both sound and light alerts notify you of potential issues, helping prevent damage. The large LCD screen, complemented by an easy-to-use backlight, ensures you can read measurements clearly in any lighting conditions. Its robust design resists magnetic interference, providing reliable results. Additionally, full function protection and high voltage safety features give you peace of mind while testing.

The Yosoo BM500A Tester features an LCD display, capable of measuring insulation resistance up to 1999MΩ. This high sampling rate of 2.3 times per second allows you to obtain quick and reliable readings. Ideal for maintenance, testing, and inspection, it supports various electrical equipment, making it versatile for your needs. Its durable ABS construction ensures accurate measurements while providing a robust tool that can withstand regular use.

The WapoRich Megohmmeter is a versatile insulation resistance tester, capable of measuring resistances from 0.1MΩ to 2GΩ with an accuracy of approximately ±4%. It offers multiple testing voltages, including DC 250V, 50V, and 1000V, as well as AC 750V, allowing you to choose the best option for your needs. The 1999 counts display ensures you can easily read measurements, while the backlight feature is particularly useful in low-light conditions. With alarms for high voltage and short circuits, you can work safely and confidently.

The Taidacent Ohm Meter offers versatile power supply options, allowing you to choose between DC5V and DC12V, which helps ensure compatibility with your setup. It operates with a low current consumption of less than 50mA, making it energy-efficient. As a common ground instrument, this meter is designed for accurate measurements, provided you use a separate power supply. By selecting the appropriate range, you can avoid inaccuracies and effectively measure small resistances, enhancing your testing experience.

The UNI-T UT500 Tester offers a 2000 count LCD display, making it easy for you to read results at a glance. It features overload indication and a backlight, ensuring you can use it in various lighting conditions. The device also measures AC voltage and has an auto power off function, helping to conserve battery life. Additionally, the continuous low resistance measurement mode provides accurate readings, making it convenient for testing electrical systems.