- 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-Precision NH4+ Sensor for Water Quality Monitoring - Reliable China Suppliers & Factory Solutions
Product Parameters
| Product Name | Ammonia Nitrogen (NH4+) Sensor |
| Measurement Method | Ionic Electrode |
| Range | 0 ~ 1000 mg/L |
| Accuracy | ±5% F.S. |
| Power | 9–24 VDC (Recommended: 12 VDC) |
| Material | Polymer Plastic |
| Size | 31mm × 200mm |
| Working Temperature | 0–50 ℃ |
| Cable Length | 5m, extendable per user requirements |
| Sensor Interface | RS-485, MODBUS Protocol |
Product Features
-
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.
-
② Custom Calibration FlexibilitySupports standard liquid calibration with adjustable forward and reverse curves, enabling tailored accuracy for specific applications.
-
③ High Stability & Anti-InterferenceIsolated power supply design minimizes electrical noise and ensures reliable data transmission in industrial or electromagnetically complex settings.
-
④ Multi-Scenario CompatibilityDesigned for direct installation into monitoring systems, it performs reliably in surface water, sewage, potable water, and industrial effluents.
-
⑤ Low Maintenance & Easy IntegrationCompact dimensions and a pollution-resistant structure simplify deployment and reduce cleaning frequency, lowering operational costs.
Application
-
1
Municipal Wastewater Treatment Monitor NH4+ levels to optimize treatment processes and comply with environmental discharge regulations.
-
2
Environmental Pollution Control Track ammonia nitrogen concentrations in rivers, lakes, and reservoirs to identify contamination sources and protect ecosystems.
-
3
Industrial Effluent Monitoring Ensure compliance with industrial wastewater standards by detecting NH4+ in real-time during chemical or manufacturing processes.
-
4
Drinking Water Safety Safeguard public health by identifying harmful ammonia nitrogen levels in potable water sources.
-
5
Aquaculture Management Maintain optimal water quality for aquatic species by balancing NH4+ concentrations in fish farms or hatcheries.
-
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 | 0–20 mg/L, 0–60 ℃ | ±0.1–0.3 mg/L |
| DO Sensor | LMS-DO10C | 0–20 mg/L, 0–60 ℃ | ±0.3 mg/L |
| Trace DO Sensor | LMS-TDO100 | 0–2000 ppb, 0–50 ℃ | ±1 ppb |
| PH Sensor | LMS-PH100 | 0–14 pH | ±0.02 pH |
| ORP Sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS Sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm; TDS: 0–10000 ppm |
±2.5% FS |
| Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm TDS: 0–60000 ppm Salinity: 0–500.00 ppt |
±1.5% FS |
| COD Sensor | LMS-COD100 | COD: 0.1–1500 mg/L TOC: 0.1–750 mg/L BOD: 0.1–900 mg/L Turbidity: 0.1–4000 NTU Temperature: 0–50 ℃ |
±5% equiv. KHP Temperature: ±0.5 ℃ |
| TSS Sensor | LMS-TSS100 | 0–50000 mg/L / 0–120000 mg/L | ±10% FS or 10 mg/L |
| Turbidity Sensor | LMS-TUR10L | 0–100 NTU | ±10% FS or 0.3 NTU |
| Turbidity Sensor | LMS-TUR10H | 0–3000 NTU | ±10% FS or 0.3 NTU |
| CO2 Sensor | LMS-CO2100 | 2000 PPM / 10000 PPM / 50000 PPM | ±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 | 0–500 ug/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?
The sensor measures ammonia nitrogen concentrations from 0 to 1000 mg/L, making it suitable for a wide range of water quality monitoring applications including municipal wastewater, industrial effluents, and natural water bodies.
Q What communication protocol does the NH4+ sensor support?
The sensor supports RS-485 interface with MODBUS protocol, which enables easy integration into industrial monitoring systems, PLCs, data loggers, and SCADA systems.
Q Can the cable length be customized?
Yes. The standard cable length is 5 meters, but it can be extended according to user requirements, providing flexibility for deployment in deep tanks, rivers, or remote monitoring points.
Q Is the sensor suitable for outdoor or harsh environments?
Yes. The sensor is constructed from durable polymer plastic that resists chemical corrosion and physical wear. It operates reliably within a temperature range of 0–50 ℃, making it suitable for outdoor water bodies, wastewater plants, and industrial settings.
Q How is the sensor calibrated?
The sensor supports standard liquid calibration with adjustable forward and reverse curves. This allows users to tailor measurement accuracy to specific application requirements, ensuring consistent and reliable readings.
Q What other water quality sensors are available in the same RS485 digital sensor series?
The RS485 digital water quality sensor series includes a comprehensive range of sensors such as DO, pH, ORP, EC/TDS, COD, turbidity, chlorophyll, residual chlorine, blue-green algae, oil-in-water, CO2, and marine current sensors, among others — all supporting MODBUS protocol for seamless system integration.