Rbshipes - I've been using it for about a month. It is heavier, but I got used to it. The main thing is the clean DC signal it outputs. Makes a big difference in flavor. One other big plus is all the data is visible at a glance, like a car dashboard. Resistance, battery remaining, ohms, volts. I really like it. Before the 20 watt, It was a Sigelei Zmax V5, which is also a great unit.
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