... and reasonable price. Features 1/2/3/(3-2) channel printout format 3.8 inch 320X240 LCD to display setting menu, ... 150HzNoise Level< 15μVp-pPaper Speed6.25, 12.5, 25, 50mm/sSensitivity2.5, 5, 10, 20mm/mVPolarizing Voltage±400mVBaseline ControlAutomatic baseline ... Level< 15μVp-pPaper Speed6.25, 12.5, 25, 50mm/sSensitivity2.5, 5, 10, 20mm/mVPolarizing Voltage±300mVBaseline ControlAutomatic baseline ...