Expert in Water Quality Measurement and Water Treatment Project Since 2007
Product Overview
- CODS-3000-1 Digital Online COD/BOD sensor from Shanghai Boqu Instrument Co., Ltd. Measures soluble organic matter by UV absorption (254 nm SAC254) and converts to COD/BOD values without reagents. Designed for continuous, in‑situ immersion monitoring with RS485 digital output and rugged SS316L construction (IP68).
Product Features
- Reagent‑free UV254 measurement for continuous monitoring
- Direct immersion operation without sampling or pre‑processing
- Automatic self‑cleaning brush and low‑maintenance design
- Digital RS485 Modbus RTU output for real‑time data transmission
- Power: DC 12 V; working temperature 0–45 °C; standard 10 m cable (extendable to 100 m)
Product Value
- Provides timely, continuous COD/BOD data for process control and compliance, enabling faster response to pollution events
- Eliminates reagent costs and secondary pollution from chemical methods
- Reduces laboratory sampling and manpower needs while improving monitoring frequency and data reliability
- Supports remote monitoring and integration into SCADA systems for better operational decision‑making
Product Advantages
- High robustness and durability: SS316L body, IP68 protection, long cable options
- Good accuracy (±5%) and multiple measurement ranges (COD: 0–90 / 0–1000 / 0–2000 mg/L depending on pathlength; BOD: 0–60 / 0–750 / 0–1500 mg/L)
- Fast response, continuous real‑time readings via RS485, and automatic cleaning for stable long‑term performance
- Manufactured by an experienced OEM with global distribution and technical support
Application Scenarios
- Influent and effluent monitoring in municipal and industrial wastewater treatment plants
- Continuous organic load surveillance in sewage treatment processes
- Surface water quality monitoring (rivers, lakes) and industrial discharge control
- Aquaculture and fishery water quality monitoring
- Integration into environmental monitoring networks and process control systems