Functional characteristics: 1. The determination principle adopts microbial electrode method, which is more convenient and faster than traditional BOD5; 2. The continuous constant current micro-injection method is adopted, the sample collection amount is small, no pretreatment reagents are added, and the secondary emission is zero pollution; 3. The operation and maintenance are simple and convenient, and the modular structure design is convenient for maintenance; 4. Water samples do not need pretreatment and have strong anti-interference ability; 5. High safety, non-toxic and harmless solidified diaphragm microbial sensor, convenient activation and use; 6. Reliable structure, simple without wearing parts and long service life; 7. Polarographic three electrodes, integrated detection and circulation, stable and reliable signals; 8. The constant temperature system adopts PIO constant temperature controller independently developed to form a precise but stable test temperature field.

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