... output volatility;Industrial frequency waves as high as 50000 points a week of the wave kneading, signal output without filter, precise ... simplely; To have perfect over-current, over-voltage, heat, a shorts-and-opens, overload protection, failure detection automatically; With RS232 ... current output Range: 0.1, 0.25 A , 0.5, 1 A , 5 A ,10 A , 20 A; range switch automaticallyAdjust fineness: 0.01% ...