Expert in Water Quality Measurement and Water Treatment Project Since 2007
Cod Sensor Vendor for Fisheries
Product Overview
- BOQU BH-485-NH digital ammonia (NH4-N) sensor: an ion-selective electrode probe that directly measures ammonium in water.
- Integrated design includes NH4+ electrode, pH reference electrode, temperature sensor and optional K+ electrode for ion compensation.
- Digital RS485 Modbus RTU output (optional 4–20 mA), IP68 protection, compact size (55 mm × 340 mm) and a standard 10 m cable (extendable to 100 m).
- Measurement range: NH4-N 0.1–1000 mg/L (K+ optional 0.5–1000 mg/L); working temperature 0–45 °C.
Product Features
- Ion-selective electrode method for direct ammonium detection with pH reference for stability.
- Multi-parameter sensing and mutual compensation (NH4+, pH, temperature, optional K+) to reduce interference (especially from K+).
- Digital RS485 Modbus RTU output for real-time remote monitoring; optional 4–20 mA analog output.
- High resolution (NH4-N 0.01 mg/L) and good temperature/pH resolution; robust IP68/NEMA6P waterproof construction.
- Designed for long-term stable measurement with strong anti-interference capability.
Product Value
- Provides timely, accurate ammonia data to protect fish health and reduce mortality in aquaculture.
- Enables automated control (aeration, biofiltration, water exchange, feeding strategies) to optimize water quality and operational costs.
- Reduces manual sampling and lab testing, improving efficiency and enabling continuous compliance/logging.
- Supports data-driven decision making for better production yields and lower environmental risks.
Product Advantages
- Integrated multi-parameter probe gives more reliable NH4-N readings by compensating pH, temperature and K+ interference.
- Wide dynamic range (0.1–1000 mg/L) and good accuracy (±5% or ±0.2 mg/L, whichever is greater) suiting both low-level aquaculture and high-strength waste streams.
- Robust, waterproof (IP68) design and long cable options for flexible field deployment.
- Standard digital communication (RS485 Modbus RTU) for easy integration into SCADA, controllers or cloud systems; optional analog output for legacy systems.
- Cost-effective, focused design with emphasis on core performance and long-term stability.
Application Scenarios
- Aquaculture and fisheries: recirculating aquaculture systems (RAS), hatcheries, ponds and sea farms for continuous ammonia monitoring and aeration/biofilter control.
- Water treatment process control: nitrification tanks, aeration basins and industrial wastewater monitoring.
- Environmental monitoring: rivers and surface waters where ammonia levels must be tracked.
- Other uses noted: drinking water systems, fertilizer and refrigeration process monitoring where ammonium measurement is required.
