Excellent build quality with very good accuracy. Also, many functions such as thermometer, remote voltage indication, and above all, it is true RMS. The only drawback I found is that the backlight lasts very little and you have to constantly press the button to turn it on, and that in measuring duty cycle it actually measures only alternating voltages that pass through zero by -0.8 at minimum, which means that without external intervention (mini circuit) it cannot be used for DC voltages. The selector is stable and can be changed even with one hand. It is an excellent purchase and the company's support is immediate with a 3-year warranty.