I panicked the first time my UNI-T multimeter showed zero amps on a live circuit. It turns out many hobbyists face this exact issue and assume their meter is broken. Most UNI-T meters require you to physically move the red test lead to a dedicated current jack. Without that simple switch, you will never get … Read more

When you use a clamp meter like a UNI-T to measure current, you might see a reading that seems too high. This happens because the meter is designed to measure one wire at a time, and wrapping the wire multiple times changes the reading. Clamp meters actually measure the magnetic field around a conductor, not … Read more

Many of us who own UNI-T multimeters get annoyed when the backlight shuts off too quickly. You might wonder if hacking the EPROM is the answer to making it stay on longer. The short answer is that UNI-T multimeters typically use factory-programmed microcontrollers, not user-accessible EPROMs. I have learned that attempting to modify this often … Read more

When your car battery dies overnight, a parasitic drain is often the culprit. I need a multimeter I can trust to find that tiny current leak, and my UNI-T is usually the tool I grab first. A good UNI-T model, like the UT61E, can measure down to 0.01 milliamps. In my experience, that level of … Read more

You ordered a replacement UNI-T multimeter, but when it arrived, it looked like someone had already handled it. This is frustrating, and you want to know why it happened and if the meter is still safe to use. I have seen this issue with several UNI-T models, and it often comes down to quality control … Read more

I have noticed my UNI-T multimeter struggles with DC current readings. This matters because inaccurate measurements can lead to faulty troubleshooting or wasted time on electronics projects. The issue often comes from the meter’s shunt resistor design, which can heat up and change resistance during use. Many budget-friendly UNI-T models sacrifice precision in the DC … Read more

Have you ever noticed your UNI-T multimeter giving slightly off readings and wondered why? The earth’s magnetic field can actually interfere with your meter’s internal components, especially the sensitive Hall effect sensors. This matters because even tiny inaccuracies can lead to big mistakes when you are troubleshooting circuits or checking voltage. Your multimeter’s accuracy depends … Read more

I want to show you how to hack the EPROM on your UNI-T digital multimeter to change the annoying auto power off setting. This matters because that feature can shut off your meter mid-measurement, costing you time and frustration. Many people think this is impossible, but the EPROM chip on most UNI-T multimeters can be … Read more