... With the functions of data-processing, display, memory, statistic, printing and compression curve display.2. Features:2.1 Pressure testing ... for showing testing curve, data-collecting, saving and printing (Optional)3. Major technical parameters:3.1 Power supply: AC380V, 50Hz, 10A, ... min)3.9 Back speed:5-250mm/min3.10 HM interface: 5.1” @ 240*128 dot-matrix LCD(blue), English language.3.11 Printer: ...