Review on DROK Frequency Electric Voltmeter Multimeter by Amrozi Goodall

I connected 3 different meters to my 115v home network and saw strange readings on the Drok 6 meter. As you can see in the image above, my BK and Kyoritsu meters read 114V and 115V, or within 1% of the correct value. In contrast, the Drok meter reads less than 96 volts, or 16% below the true value. This goes far beyond the specified accuracy of "1% ± 2 digits" and is therefore inaccurate and unusable for almost any technical purpose. Since power and energy readings are voltage dependent, I cannot be sure that this meter will give useful readings of these quantities. The only reason I gave it two stars is because the 6 color display is very easy to read and interpret and can be useful in models where actually reading is irrelevant.