Significant Features: American-made membrane head, specifically designed for ppb-level dissolved oxygen measurement in boiler feed water and condensate, widely used in power plants. Electrode system with superior performance: besides the traditional platinum cathode and silver anode, it includes a silver reference electrode, greatly enhancing signal stability and accuracy with stable zero point. Minimal residual current drift over long-term use, meeting ppb-level measurement requirements. Fast response time, with a built-in self-consuming electrode that automatically depletes residual oxygen in the electrolyte. Technical Parameters: Temperature Range: 0~80℃ Dissolved Oxygen Response Time: 30 seconds to reach 95% (25℃) Dissolved Oxygen Range: 0~40mg/L Temperature Compensation: 22KΩ Feature: 316L stainless steel housing Interface: PG13.5 Specification: Cable length 5 meters Installation Method: 3/4-inch pipe thread installation Applicable Scenarios: Aquaculture, wastewater, and sewage treatment fields. Significant Features: ① Platinum (Pt) cathode, Ag/AgCl anode ② Electrolyte: 0.1M potassium chloride (KCl) ③ Uses imported American (BJ) silicone rubber permeable membrane as the gas-permeable membrane ④ Equipped with silicone rubber and steel mesh ⑤ Resistant to impact, corrosion, high temperature, and deformation Technical Parameters: Measurement Range: 0-20μg/L, 0-20mg/L Electrode Housing Material: 316 stainless steel Temperature Compensation Resistor: NTC: 2.252K, 22K, Rt100, Rt1000 Sensor Lifespan: >3 years Standard Cable Length: 5M (double-shielded) Detection Lower Limit: 1μg/L (ppb) (20℃) Measurement Upper Limit: 20mg/L (ppm) Response Time: ≤3min (90%, 20℃) Polarization Time: >8h Minimum Flow Rate: 5cm/s; 515 L/h Drift: <3%/month Measurement Error: <±1ppb Output Current: 20-25nA/0.01mg Maximum Current: -25nA Polarization Voltage: 0.7V Zero Oxygen: <5ppb (60min) Calibration Interval: >60 days Water Quality Measurement Range: 0-130℃ Application Scope: Applied in thermal power plants, high-temperature fermentation industries, etc.