Huh, found the Maynuo M9811 for about the same price as the BK Precision 8540 but its a 0-150V, 0-30A 200W unit as opposed to the BK 8540 which is only a 0-60V, 1ma-30A, 150W unit. Seems to be a better unit for the money, if its a well made product. Never heard of them, Ive at least heard of BK Precision.