... Meter 2code:PH-2603 3Multifunctional detection 4indication :PH,MV,T,cf,ec,tds 5.ce certificate MODELPH-2603Measuring rangepH: 0.00 ... : 0.1CFTDS: 10ppmAccuracypH: ±0.01pHmV: ±1mV°C: ±0.4°CEC.CF.TDS: ±2%F.SInput impedance102 ΩCalibration 1 or 2pointWorking temperature0 ...