... 2code:PH-2603 3Multifunctional detection 4indication :PH,MV,T,cf,ec,tds 5.ce certificate MODELPH-2603Measuring rangepH: 0.00~14 ... .00mV: 0~ ±1999mV°C: 0~100°C EC: 0.00~19.99ms/cmCF: 0.0~199.9CFTDS: 10 ... : 10ppmAccuracypH: ±0.01pHmV: ±1mV°C: ±0.4°CEC.CF.TDS: ±2%F.SInput impedance102 ΩCalibration 1 or 2pointWorking temperature0~95°CPowerDC9V ...