FB673PV Solar Panel Tester Meter Photovoltaic Multimeter 800W, MPPT Meter with Clear LCD, Smart MPPT Open Circuit Voltage Troubleshooting Utility Tool for PV Testing

Unit looks OK and should do the job in theory but simply didn't work so I returned it

The media could not be loaded. I have fitted a fair few solar panel arrays and previously used a Fluke DMM for the usual test measurements. It does involve using a resistance bridge to test MPPT and current flows, but we get used to a certain routine. Using this Pwootecc solar panel tester is more convenient, but worth the cost?The device is a self contained, requires no batteries, as it is powered by the output from the working solar panel/array. The kit I ordered is the lower priced version, measuring up to 800w. It arrives in a nice zipped protective case, PV connectors leads ends with standard banana plugs. Also plug splitters.I made a short video of the tester in action. I noted that as soon as it is connected to a solar output, or in fact any DC feed withing its test parameters, it will register a voltage. AS soon as I pressed the AUTO button, the MPPT/current test begins and is timed out on the display. This can be seen on the video.The auto test repeats, untill AUTO is pressed again and this returns it into manual mode. The auto test mode, enables the correct dwell time for current measurement and clears in order to maintain good temperature regulation in the device without overheating.I note that in the MANUAL mode, it's recommended to maintain tests for limited time periods to avoid overheating.The display is reasonably clear and easy to read in strong lighting. An essential feature considering this will surely be used outside, in strong sunlight where good visible readings are required. It's possible to measure arrays of solar panels as well, providing the voltage (100V) and peak wattage is not likely to be exceeded.In any event, this nice little meter has several built in safety devices that protect the user and the internal circuit from over voltage/ current/ heating etc.I do question why this meter is nearly £100. After all, it's simply a power configured V/A test meter with some extra features, such as self powered, and auto. MPPT readings. However, there is no display backlight, (maybe needed) when testing inside solar control panels and this kit does not come with additional croc clip test leads, only photovoltaic test connections.Nonetheless, if testing several and frequent sessions of PV units, this will be really useful. Better features will be memory tests for PV panel comparisons, but not available on this model.