EY-1800W Solar Panel Tester MPPT Photovoltaic Panel Multimeter, Upgraded Measuring Range (5~1800W, 20~120V, 0~60A), Smart MPPT Tools for Testing Solar PV Panel Data and Troubleshooting

I'm no professional solar installed but I was having difficulty with a solar setup with 40 panels in parallel. It was hard to really tell what was and wasn't working from just multi meter readings alone. Plus it was a bit difficult to test with standard leads while on a ladder reaching over the roof of a large vehicle. This has actual MC4 connectors and does a dead simple full test allowing me to figure out what's going on more easily. For the price I recommend this even for just smaller projects.

Gracias

Cumple su función perfectamente

Very good product

Works really!!! Great build quality. Easy to use. Lightweight. The cables are nice and flexible, even when cool. The numbers are easily readable even in direct sunlight. I like that it comes with two different type of disconnect tools. Some of my connects use the wide jaws, whereas the others use the narrow ones. I wish I'd know about that before putting orders in.Anyways, I really like the unit. It's also good that it adjusts the Auto-duration during testing depending on conditions. Sometimes tracking needs more than a few seconds to get an accurate lock. Very nice

Reading is way off. It's showing 369W from a 200W panel, which is impossible. I verified with another meter which showed correctly closer to the 200W panel rating. Don't know if I got a defective unit or this is QC issue. Returning this.

I love the fact that this meter doesn't require batteries and receives all its operating power from the solar panel being tested. Several years ago, there was a company selling 200w solar panels that were deliberately labeled wrong and were actually only 100w panels. That product is no longer sold on Amazon, but I was one of those people that purchased the fake 200w panels. When I tested the UT673PV Solar Panel Tester I used the fake panel to see if the meter could actually detect the fraudulent wattage rating. The meter did indeed identify the maximum wattage output of the 200w solar panel to actually be 85 - 93 watts. Next, I connected the meter to a real 200-watt solar panel array, and it accurately displayed 185 - 195 watts. You can run the meter in Auto where it will re-test the panel after a brief time delay or you can use the manual option to test every time you physically push the button. This meter has self-protection against overheating and over voltage. Besides the meter it also comes with two plastic wrenches to help you get the solar connectors apart. My only criticism and the one thing that I don't understand is why the meter gives you such a fluctuation in test results. If my Sun intensity is unchanged for ten minutes and my solar panels are not moved or blocked in ten minutes, then wouldn't you expect the same test results over the course of ten minutes? That doesn't happen with the UT673PV Solar Panel Tester which gives you constantly fluctuating results when set to Auto. This meter is however a crucial test instrument when verifying the amperage, wattage, and voltage of a solar panel or group of panel arrays. This meter gives you two types of test results one, is open circuit (no load) and the other is under simulated load with true voltage and amperage output.

Did a head to head test with my handy power meter and it reads with the same accuracy. This makes solar panel work so much easier. Glad to have this in my DIY solar toolbox!