ISTA pH and ORP Controller

CHARACTERISTICS pH & ORP monitor and control in one unit. With temperature indication. Easy to read LCD with different back light as indication of operation. Digitally adjustable to allow pH auto calibration. Automatic alarm, when pH or ORP level is out of the setting range. GENERAL SPECIFICATION Item No.I-855 Display LCD with two colors back light. Measurement 0 to 14 pH, -1999 to 1999 mV, 0 to 50C(32 to 122?F) Set Range3.0 to 11.0 pH, -1000 to 1000 mVResolution0.01 pH, 1mV, 0.1C Accuracy at 25C(0.1% 2 digits) after calibrating, 0.5C Calibration(Automatic)pH 7.00 (CAL.) / pH 4.00 / pH 10.00 (SLOPE) Calibration(Manual)pH 7 (6~8) / pH 4 (2.5~5.5) / pH 10 (8~12) ORP100mV