Hãng sản xuất: HANNA - ÝRangepH0.00 to 14.00 pH ORP±1999 mVResolutionpH0.01 pH ORP1 mVAccuracypH±0.01 pH ORP±1 mVpH Calibration manual, 2 point, through trimmers, (offset ±1 pH; slope 85 to 105%)Temperature Compensation manual, 0 to 100°C (32 to 212 ...