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Product DetailsProduct Introduction
The HM-S103 is a three-parameter handheld water quality detector integrating Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH3-N), and Total Phosphorus (TP) measurement in a single device. These three indicators constitute the core discharge monitoring framework for municipal wastewater treatment — covering organic pollution (COD), nutrient pollution from nitrogen compounds (NH3-N), and eutrophication risk from phosphorus compounds (TP). The instrument uses spectrophotometric detection with an imported cold light source, automatic wavelength selection, and 0.001 absorbance sensitivity for all three parameters. COD measurement complies with HJ/T399-2007, ammonia nitrogen with HJ535-2009, and total phosphorus with HJ671, each retaining independent standard-level accuracy. At $960, the HM-S103 costs 54% less than purchasing three separate single-parameter units, offering municipal wastewater treatment plants and industrial facilities a comprehensive, cost-efficient solution for daily discharge compliance monitoring.
Applications
Municipal wastewater treatment plant daily operational compliance — COD, NH3-N, and TP discharge monitoring
River and lake water quality patrol survey — three-parameter eutrophication risk assessment
Textile dyeing and printing effluent — organic load, nitrogen, and phosphorus triple discharge verification
Chemical and pharmaceutical wastewater — three-parameter regulatory compliance testing
Agricultural runoff monitoring — nutrient pollution (NH3-N and TP) alongside organic load (COD) screening
Industrial park centralized treatment facility — multi-parameter effluent quality verification
Functional Performance
Three-parameter integration — COD, NH3-N, and TP measured on one handheld device, eliminating three separate instruments.
54% cost savings over purchasing three standalone single-parameter analyzers while maintaining equivalent accuracy for each parameter.
COD four-range coverage (10–150, 20–450, 50–1,500, 500–15,000 mg/L) per HJ/T399-2007.
Ammonia nitrogen four-range coverage (0.05–7.5, 0.2–15, 2–50, 4–200 mg/L) per HJ535-2009.
Total phosphorus three-range coverage (0.02–3, 0.15–15, 0.5–30 mg/L) per HJ671.
Automatic wavelength selection — seamless switching among COD, NH3-N, and TP measurement wavelengths without manual filter changes.
Android smart operating system with 3.5-inch color LCD touch screen for unified three-parameter workflow management.
Imported cold light source with up to 100,000 hours lifespan, shared across all three parameter channels.
Digestion-colorimetric integrated tube design for simplified sample preparation across COD, NH3-N, and TP tests.
80,000+ record onboard storage for long-term three-parameter compliance tracking.
Type-C, WiFi, and Bluetooth connectivity for cloud platform data upload and remote trend analysis.
Main Parameters
| Parameter | Specification |
|---|---|
| Test items | Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH3-N), Total Phosphorus (TP) |
| COD reference standard | HJ/T399-2007 |
| COD measurement range | 10–150 mg/L, 20–450 mg/L, 50–1,500 mg/L, 500–15,000 mg/L |
| NH3-N reference standard | HJ535-2009 |
| NH3-N measurement range | 0.05–7.5 mg/L, 0.2–15 mg/L, 2–50 mg/L, 4–200 mg/L |
| TP reference standard | HJ671 |
| TP measurement range | 0.02–3 mg/L, 0.15–15 mg/L, 0.5–30 mg/L |
| Wavelength selection | Automatic |
| Repeatability | <0.5% |
| Stability | <0.5% |
| Sensitivity (absorbance) | 0.001 |
| Sample compatibility | 16 mm (round), 22 mm (round) |
| Colorimetric method | Digestion-colorimetric integrated tube |
Technical Parameters
| Parameter | Specification |
|---|---|
| Operating system | Android smart operating system |
| Display | 3.5-inch color LCD touch screen |
| Light source | Imported cold light source, lifespan up to 100,000 hours |
| Data storage | Over 80,000 records |
| Communication | Type-C, WiFi, Bluetooth |
| Printer | Optional portable Bluetooth printer |
| Battery | 5,600 mAh lithium battery |
| Continuous working time | 8 hours |
| Power supply | 5V/DC |
| Operating environment | 0–50 °C, 0–90% relative humidity |
| Dimensions | 190 × 77 × 72 mm |
| Weight | 325 g |
| Supported languages | Simplified Chinese or English |
| Smart digestor (included) | 6-chamber, PID temperature control ±0.5 °C, max 200 °C, 400 W, 245 × 163 × 192 mm |
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