Hãng sản xuất: HANNA - ÝRangepH-2.00 to 16.00 pH pH-mV±825 mV (pH-mV) ORP±1999 mV Temperature-5.0 to 105.0°C; 23.0 to 221.0°FResolutionpH0.01 pH pH-mV1 mV ORP1 mV Temperature0.1°C/0.1°FAccuracy @ 20°CpH±0.02 pH pH-mV±1 mV ORP±2 mV Temperature±0.5°C ...