- Multi-parameter Water Analyzer
- Single-Parameter Water Aalyzer
- DO Sensor
- Trace DO Sensor
- CO₂ Sensor
- COD Sensor
- EC TDS Sensor
- Salinity EC TDS Sensor
- TSS Sensor
- Turbidity Sensor
- PH Sensor
- ORP
- Ion Selective Sensor
- Ammonia Nitrogen Sensor
- Oil in Water Sensor
- Blue-Green Algae Sensor
- Chlorophyll Sensor
- Residual Chlorine Sensor
- Marine Current Sensor
0102030405
High-Accuracy NH4+ Sensor for Water Quality Monitoring - China Suppliers and Factory Approved
Product Parameters
| Product Name | Ammonia Nitrogen (NH4+) Sensor |
| Measurement Method | Ionic electrode |
| Range | 0 ~ 1000 mg/L |
| Accuracy | ±5%F.S. |
| Power | 9-24VDC（Recommend 12 VDC） |
| Material | Polymer Plastic |
| Size | 31mm × 200mm |
| Working Temperature | 0–50℃ |
| Cable Length | 5m, can be extended according to user need |
| Sensor Interface Supports | RS-485, MODBUS protocol |
Product Features
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♻️① Eco-Friendly & Robust DesignConstructed from durable polymer plastic, the sensor resists chemical corrosion and physical wear, ensuring longevity in demanding environments such as wastewater plants or outdoor water bodies.
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🎯② Custom Calibration FlexibilitySupports standard liquid calibration with adjustable forward and reverse curves, enabling tailored accuracy for specific applications.
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🛡️③ High Stability & Anti-InterferenceIsolated power supply design minimizes electrical noise and ensures reliable data transmission in industrial or electromagnetically complex settings.
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🔗④ Multi-Scenario CompatibilityDesigned for direct installation into monitoring systems, it performs reliably in surface water, sewage, potable water, and industrial effluents.
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⚙️⑤ Low Maintenance & Easy IntegrationCompact dimensions and a pollution-resistant structure simplify deployment and reduce cleaning frequency, lowering operational costs.
Application
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1. Municipal Wastewater Treatment
Monitor NH4+ levels to optimize treatment processes and comply with environmental discharge regulations.
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2. Environmental Pollution Control
Track ammonia nitrogen concentrations in rivers, lakes, and reservoirs to identify contamination sources and protect ecosystems.
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3. Industrial Effluent Monitoring
Ensure compliance with industrial wastewater standards by detecting NH4+ in real-time during chemical or manufacturing processes.
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4. Drinking Water Safety
Safeguard public health by identifying harmful ammonia nitrogen levels in potable water sources.
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5. Aquaculture Management
Maintain optimal water quality for aquatic species by balancing NH4+ concentrations in fish farms or hatcheries.
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6. Agricultural Runoff Analysis
Assess nutrient runoff impacts on water bodies to improve sustainable farming practices.
Digital RS485 Water Quality Sensors Technical Data
| Parameter | Model | Range | Accuracy |
| DO sensor | LMS-DO10B | 0-20mg/L, 0-60℃ | ±0.1-0.3mg/L |
| DO sensor | LMS-DO10C | 0-20mg/L, 0-60℃ | ±0.3mg/L |
| Trace DO sensor | LMS-TDO100 | 0-2000ppb, 0-50℃ | ±1ppb |
| PH sensor | LMS-PH100 | 0-14pH | ±0.02pH |
| ORP sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS sensor | LMS-TDS102 | CT: 0-9999uS/cm; 0-100mS/cm; TDS: 0-10000ppm |
±2.5%FS |
| Salinity/EC/TDS sensor | LMS-SAL104 | Conductivity: 0.1-500 mS/cm TDS: 0-60000ppm Salinity: 0-500.00ppt |
±1.5%FS |
| COD sensor | LMS-COD100 | COD: 0.1-1500mg/L TOC: 0.1-750mg/L BOD: 0.1-900mg/L Turbidity: 0.1-4000NTU Temperature: 0-50℃ |
±5% equiv.KHP Temperature: ±0.5℃ |
| TSS sensor | LMS-TSS100 | 0-50000mg/L / 0-120000mg/L | ±10%FS or 10 mg/L |
| Turbidity sensor | LMS-TUR10L | 0-100NTU | ±10%FS or 0.3 NTU |
| Turbidity sensor | LMS-TUR10H | 0-3000NTU | ±10%FS or 0.3 NTU |
| CO2 sensor | LMS-CO2100 | 2000PPM / 10000PPM / 50000PPM | ±5%FS |
| Ammonia Nitrogen sensor | LMS-NH4100 | 0-1000 mg/L | ±5%FS |
| Ion Selective sensor | LMS-ION100 | 0-1000 mg/L | ±5%FS |
| Oil in Water sensor | LMS-OIL100 | 0-50 mg/L; 0-5 mg/L | ±3%FS |
| Chlorophyll sensor | LMS-CHL100 | 0-500ug/L | ±3%FS |
| Blue-Green Algae sensor | LMS-BGA100 | 0-2,000,000 cells/ml | ±3%FS |
| Residual Chlorine sensor | LMS-HCLO100 | 0-20.00 ppm | ±5%FS |
| Marine Current sensor | LMS-Current100 | Temperature: -3℃ – 45℃ Velocity of flow: 0-500 cm/s Flow direction: 0-359.9° |
±0.05℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions (FAQ)
Q What is the measurement range of the Ammonia Nitrogen (NH4+) Sensor?
A The sensor covers a measurement range of 0 to 1000 mg/L, making it suitable for a wide variety of water quality monitoring scenarios from clean water to highly contaminated industrial effluents.
Q What communication protocol does the NH4+ sensor support?
A The sensor supports RS-485 interface with MODBUS protocol, enabling easy integration into existing industrial monitoring networks, PLCs, and data acquisition systems.
Q Can the cable length be customized for remote installation?
A Yes. The standard cable length is 5 meters, but it can be extended according to user requirements, providing flexibility for installations in deep tanks, remote monitoring stations, or large water bodies.
Q What environments is the Ammonia Nitrogen sensor designed for?
A The sensor is designed for use in municipal wastewater treatment plants, industrial effluent systems, rivers and reservoirs, drinking water facilities, aquaculture ponds, and agricultural runoff monitoring sites.
Q How does the sensor maintain accuracy in electrically noisy industrial environments?
A The sensor features an isolated power supply design that effectively minimizes electrical noise and interference, ensuring stable and accurate data transmission even in complex electromagnetic industrial settings.
Q Does the sensor require frequent maintenance or calibration?
A No. Thanks to its pollution-resistant structure and compact design, the sensor requires minimal maintenance. It supports standard liquid calibration with adjustable curves, reducing both cleaning frequency and overall operational costs.