... -610 PH-620 PH-640 PH-660 Desk-top pH meters-SERIES 600Highlights: 1. Auto/man pH Temperature compensation2. pH temperature ... value, temperature, MTC/ATCSensor Data Saving Content (GLP) Sensor calibration date, time, calibration method, pH buffer temperature, TC method, sensor zero point ... Manual, 0∼95Calibration2pH pointsDimensions210x205x65mmPowerDC9V or 220VAC adapter, 50HzWeight1.5kg pH meters