NBL-WQ-DO industrial online dissolved oxygen sensor uses fluorescence measurement principle, range 0-20mg/L (0-200% saturation), supports RS485 Modbus RTU output, IP68 protection. Suitable for wastewater treatment, aquaculture and environmental water quality monitoring. Provides technical parameters, maintenance methods, temperature and salinity compensation instructions, and system integration po···

NiuBoL NBL-WQ-CL industrial online residual chlorine sensor adopts the constant voltage method, supports dual ranges of 0-2mg/L and 0-20mg/L, RS485 Modbus RTU output, and IP68 protection. It is suitable for drinking water treatment, swimming pools, and industrial circulating water systems. It provides the importance of residual chlorine monitoring, constant voltage method principle, technical para···

NiuBoL NBL-WQ-NHN integrated online ammonium nitrogen sensor adopts the PVC membrane ammonium ion selective electrode method, equipped with automatic temperature compensation function, enabling real-time continuous measurement of ammonium nitrogen in water bodies. The sensor outputs RS-485 Modbus RTU signals and supports system integrators to directly connect to PLC, DCS, and IoT platforms. It is ···

NiuBoL NBL-WQ-NHN integrated online ammonium nitrogen sensor adopts the PVC membrane ammonium ion selective electrode method, equipped with temperature compensation. It is suitable for real-time ammonia nitrogen monitoring in aquaculture ponds, industrial wastewater, and environmental protection projects. The sensor provides RS-485 Modbus RTU standard output and supports direct connection to PLC, ···

NiuBoL NBL-WQ-NHN integrated online ammonium nitrogen sensor adopts the PVC membrane ammonium ion selective electrode method, equipped with Pt1000 automatic temperature compensation, and supports RS-485 Modbus RTU output. It is suitable for real-time ammonia nitrogen concentration monitoring in sewage treatment plants, biochemical treatment systems, and aquaculture projects, providing stable proce···

For system integrators and engineering contractors, this article provides an in-depth analysis of water quality testing standards for non-drinking water industries. It covers regulatory requirements in 12 fields including industrial wastewater, surface water, groundwater, and reclaimed water reuse, and offers online monitoring solutions based on NiuBoL digital water quality sensors to help achieve···

NiuBoL NBL-WQ-CL online residual chlorine sensor adopts the constant voltage method measurement principle, equipped with Pt1000 automatic temperature compensation, and supports RS-485 Modbus RTU output. It is suitable for continuous residual chlorine monitoring in drinking water treatment, swimming pools, industrial circulating cooling water, and hospital sewage disinfection projects, providing re···

NiuBoL NBL-WQ-BOD-4A dual-wavelength fluorescence online BOD sensor adopts the fluorescence method principle to simultaneously measure BOD and turbidity, with a range of 0～150mg/L. It outputs RS-485 Modbus RTU signals and supports system integrators to quickly connect to PLC, DCS and IoT platforms. It is suitable for real-time organic load monitoring in wastewater treatment processes.

This article analyzes the definition, detection principles, interrelationship, and engineering application value of the two core pollution indicators — Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) — in wastewater treatment from an engineering and technical perspective. It is suitable for system integration, wastewater treatment process control, and environmental compliance mo···

For system integrators and industrial procurement decision-makers, a deep comparison of BOD determination methods (dilution and inoculation method, microbial sensor method, and dual-wavelength fluorescence method). It analyzes the technical advantages of NiuBoL digital BOD sensors, covering RS485 Modbus RTU protocol integration, automatic turbidity compensation, and online continuous monitoring so···