... Resolution: 0.1C Pressure Compensation Range:600-4000mbar Dissolved Oxygen AnalyzerRange:0.000-40.000ppm or 0-400 Accuracy ... dot matrix LCD-Multi-parameter: The value of dissolved oxygen, temperature, output current, alarm points at the ... electrode one, two alternate first film (limited to ordinary sewage membrane electrode), an alternate electrolyte bottle Intelligent Industrial Dissolved Oxygen ...