A single handheld instrument can now measure pH, turbidity, conductivity, and chlorine simultaneously—delivering lab-grade accuracy in the field, with full CE, RoHS, and ISO 9001 certification for global export.
Water quality testing no longer requires multiple instruments or laboratory delays. The ERUN-SP4 portable multi-parameter water quality meter integrates optical and electrode methods, enabling rapid on-site detection of drinking water, surface water, and wastewater. With the global water quality testing equipment market projected to grow from $4.83 billion in 2025 to $5.13 billion in 2026, and multi-parameter meters expected to grow at a CAGR of 9.5% through 2032, the shift from lab-only testing to portable on-site detection is accelerating.
A multi-parameter water quality meter eliminates the need for separate pH meters, turbidimeters, conductivity sensors, and chlorine test kits—saving time, reducing costs, and minimizing human error.
Traditional water quality testing requires carrying multiple devices, each dedicated to a single parameter. Field technicians often spend hours traveling between sampling sites and laboratories, or juggling several instruments at each location. A portable multi-parameter meter consolidates all essential tests into one lightweight device (500g), enabling a single operator to complete a full water quality profile in minutes. The ERUN-SP4 supports pH, ORP, conductivity, dissolved oxygen, and turbidity measurements, with customizable electrode configurations to match specific testing needs.
The ERUN-SP4 portable water quality meter measures pH (0–14), conductivity, turbidity, and chlorine (via DPD method) with high precision, covering all critical drinking water safety indicators.
Parameter | Measurement Method | Typical Range | Application |
|---|---|---|---|
pH | Electrode method | 0.00–14.00 | Drinking water acidity/alkalinity |
Conductivity | Electrode method | 0–200 mS/cm | Total dissolved solids assessment |
Turbidity | Optical method (90° scattering) | 0–1000 NTU | Water clarity and particle contamination |
Chlorine (free/total) | DPD colorimetric method | 0–10 mg/L | Disinfection effectiveness monitoring |
Dissolved Oxygen | Fluorescence/polarographic | 0–20 mg/L | Aquatic ecosystem health |
The instrument features 10 wavelengths (420nm–700nm) with ±1nm accuracy, automatically selecting the correct wavelength for each sample measurement. Colorimetric accuracy reaches ±0.005A at 1A, ensuring reliable results even at low contaminant concentrations.
Water quality professionals across municipal供水, environmental monitoring, industrial wastewater treatment, and aquaculture rely on portable multi-parameter meters for daily compliance testing and rapid emergency response.
Regular monitoring of pH, turbidity, and chlorine residual is mandatory for drinking water safety compliance. The ERUN-SP4 enables field staff to verify treatment effectiveness at distribution points without returning samples to the lab.
Surface water and groundwater quality assessments require multi-parameter profiling. Portable meters allow inspectors to conduct rapid screenings across multiple sites in a single day.
Wastewater discharge permits require testing of pH, conductivity, and other parameters. On-site testing with a handheld meter ensures immediate compliance verification before release.
Fish farms and agricultural operations depend on dissolved oxygen, pH, and conductivity for optimal growth conditions. Real-time data enables immediate corrective actions.
The ERUN-SP4 combines industrial-grade optics, extensive data storage (9,999 records), and a rechargeable battery in a rugged, portable design—engineered for demanding field conditions.
Optical System: 10 wavelengths (420–700nm), ±1nm accuracy, automatic wavelength selection
Absorbance Range: -2.500 to 2.500A with ±0.002A linearity (0–1A)
Data Storage: Up to 9,999 measurement records including parameter name, concentration, unit, date, and time
Calibration Curves: 250 factory curves + 749 user-defined curves (total 999)
Display: 240×160 dot matrix LCD
Power: Rechargeable 7.4V 1500mAh lithium battery with Type-C charging port
Operating Environment: 5–40°C, humidity ≤90%
Dimensions/Weight: 230×88×52mm, 500g
Additional features include password-protected administrator settings, data power-off protection, one-key factory reset, and PC data acquisition software compatibility for record collection, editing, and printing.
The ERUN-SP4 holds CE, RoHS, and ISO 9001 certifications—three credentials that demonstrate compliance with international safety, environmental, and quality management standards, essential for global export.
Certification | What It Means |
|---|---|
CE | Conforms to EU safety, health, and environmental protection requirements; mandatory for European market access |
RoHS | Restricts hazardous substances (lead, mercury, cadmium, etc.); ensures environmental safety |
ISO 9001 | Certified quality management system; consistent product quality and reliability |
For international buyers, these certifications eliminate regulatory barriers and provide confidence in product quality. CE certification for water quality analyzers typically requires compliance with EMC (Electromagnetic Compatibility), LVD (Low Voltage Directive), and RoHS directives, with specific parameter calibration standards such as EN ISO 10523 (pH) and EN ISO 5814 (dissolved oxygen).
Select a meter that matches your target parameters, offers sufficient accuracy for your compliance requirements, and carries the certifications needed for your market.
Identify your parameters: Drinking water testing typically requires pH, turbidity, chlorine, and conductivity. The ERUN-SP4 covers all four in one device.
Check accuracy requirements: Regulatory compliance often mandates specific precision levels. The ERUN-SP4 delivers ±0.01 pH accuracy and ±0.005A colorimetric accuracy.
Verify certifications: For EU exports, CE and RoHS are mandatory. For quality management systems, ISO 9001 adds credibility.
Consider field usability: Lightweight design (500g), rechargeable battery, and data storage are essential for extended field work.
Evaluate total cost: A multi-parameter meter eliminates the need for multiple single-parameter instruments, reducing overall equipment investment.
Q: Can this meter test drinking water for regulatory compliance?
A: Yes. The ERUN-SP4 measures pH, turbidity, conductivity, and chlorine—the core parameters required for drinking water safety monitoring under most regulatory frameworks.
Q: How long does a single test take?
A: Most parameter measurements are completed within 1–3 minutes per sample, significantly faster than laboratory analysis.
Q: Is the meter calibrated at the factory?
A: Yes. The instrument comes with factory calibration curves (up to 250) and allows users to add up to 749 additional custom calibration curves.
Q: What reagents are included?
A: The configuration includes reagents for each selected parameter (up to 10 parameters with supplied reagents), colorimetric tubes, pipette gun, and corresponding electrodes for pH, conductivity, and dissolved oxygen.
Q: Does it work in harsh field conditions?
A: The meter operates at 5–40°C with humidity up to 90%, and can be stored at -40–60°C. The rugged portable case protects the instrument during transport.
The ERUN-SP4 portable multi-parameter water quality meter delivers lab-grade accuracy for pH, turbidity, conductivity, and chlorine testing in a single handheld device—backed by CE, RoHS, and ISO 9001 certifications for worry-free global export. Whether you're monitoring drinking water quality, conducting environmental surveys, or ensuring industrial wastewater compliance, this instrument provides the reliability, efficiency, and data traceability you need.
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