KL-188 on-line control set shows( industry) digit display sodium instrumentation It is an accurate secondary instrument with LED digital display. it is applicable to determine Na+ value of water solution in departments of petroleum,chemical,medicine-produce ect. Automatic temp.Compensation Technical Specification: Measuring range: pNa:09Na+:23g/L0.023g/L pNa+17Na+2.3g/L2.3g/L Accuracy: ?.02pNa/3pNa ?.05pNa?digitals Resolution: 0. 01pNa stability: 0.02pNa/24h temp.Compensation range:0-100 waring accuracy: ?.02 pNa environment: temperature: 0-50 output carrent: 4-20mA AC: 220V?0% 50Hz?% calibration: single-point and double-point display: 4-digital LED input resistance: 1013 imension: 96mm(L)?6mm(W)?60mm(H) Weight: 950g