Basic Marketing Information
Product Positioning: UV spectrophotometry online COD sensor for drinking water quality monitoring, with international certifications, high precision, suitable for global export
1. Product Core Overview
For water treatment facilities and environmental monitoring agencies seeking a COD analyzer that meets international standards, our UV spectrophotometry-based chemical oxygen demand sensor delivers laboratory-grade accuracy (≤5%FS) with 0.01mg/L resolution—backed by CE, RoHS, and ISO 9001 certifications.
Market Background:
The global water quality testing instrument market is projected to reach USD 6.0–7.0 billion by 2025, with a compound annual growth rate of 6.5%–8.5% through 2030. As drinking water safety regulations tighten worldwide, the demand for precise, certified COD detection equipment continues to rise. This article explains why our COD analyzer is the optimal choice for your water quality monitoring needs.
2. Why COD Measurement Matters for Drinking Water Quality
Chemical Oxygen Demand (COD) is the most critical indicator of organic contamination in water—high COD levels directly threaten human health and indicate pollution from industrial discharge, agricultural runoff, or municipal wastewater.
2.1 Working Principle & Monitoring Significance
COD measures the amount of oxygen required to oxidize organic matter in a water sample. For drinking water applications, COD monitoring ensures that source water meets safety standards before treatment and verifies that treated water remains contaminant-free throughout distribution.
The EPA-approved method 410.4 (colorimetric determination) provides the standard framework for COD analysis in ground and surface waters, as well as domestic and industrial wastes.
2.2 Core Technical Advantage of This Equipment
Our analyzer employs UV spectrophotometry—a method that measures COD by detecting ultraviolet light absorption, eliminating the need for hazardous reagents and reducing operational costs.
3. Certified Quality: CE, RoHS, and ISO 9001 Compliance
Our COD analyzer carries CE, RoHS, and ISO 9001 certifications—the essential credentials for exporting to European and international markets, demonstrating compliance with stringent safety, environmental, and quality management standards.
3.1 Certification Value for Global Buyers
CE marking: Conforms to European health, safety, and environmental protection standards
RoHS certification: Product free from restricted hazardous substances
ISO 9001 certification: Standardized international quality management manufacturing system
3.2 Supplier Advantage
Unlike many suppliers who merely claim compliance, we provide verifiable certification documentation with every shipment. This commitment to quality has made us a trusted partner for water treatment facilities, environmental monitoring agencies, and industrial plants across multiple continents.
4. Technical Specifications That Deliver Results
Our COD sensor achieves ±2% repeatability and 0.01mg/L resolution across three measurement ranges (0–90mg/L, 0–1000mg/L, 0–2000mg/L), with an IP68-rated 316 stainless steel housing designed for long-term industrial online monitoring.
Complete Parameter Table
Parameter |
Specification |
Measuring Principle |
UV Spectrophotometry |
Accuracy |
≤5% FS |
Resolution |
0.01 mg/L |
Repeatability |
±2% |
Pressure Range |
≤0.4 MPa |
Housing Material |
316 stainless steel |
Communication |
RS485, Modbus protocol |
IP Rating |
IP68 |
Operating Temperature |
0–45°C |
Cable Length |
Standard 10m |
Extra Functional Features
Self-cleaning wiper: Avoid microbial adhesion, extend maintenance cycle, guarantee long-term stable measurement under complex water conditions
Pre-calibrated factory setting: Built-in calibration parameters, ready for installation after delivery
5. Versatile Applications Across Water Treatment
Our COD analyzer serves drinking water quality testing, wastewater treatment monitoring, surface water assessment, and industrial effluent control—delivering real-time data for regulatory compliance and process optimization.
Main Application Scenarios
Drinking water treatment plants: Real-time online monitoring of raw source water and finished tap water
Wastewater treatment facilities: Continuous COD detection for inlet and outlet water to meet discharge regulatory standards
Environmental monitoring stations: Long-term surface water quality tracking
Industrial production workshops: Effluent monitoring for chemical, pharmaceutical, food & beverage factories
University & research laboratories: Water quality experimental analysis and academic research
System Integration Advantage
RS485 digital output with Modbus protocol supports seamless docking with existing SCADA systems and remote cloud monitoring platforms.
6. Why Choose a Certified Chinese Manufacturer?
Chinese water quality instrument manufacturers now supply over 30 countries worldwide, with CE and ISO-certified products matching or exceeding the performance of Western brands at significantly competitive prices.
Industry Market Prospect
The global water quality analyzer market continues to expand, with China positioned as the world's second-largest economy in this sector, forecast to reach US$1.1 billion by 2032. Leading Chinese manufacturers have invested heavily in R&D, quality control, and international certification.
Factory Supply Strength
Our factory-direct pricing, combined with ISO 9001-certified production processes and comprehensive after-sales support, delivers exceptional value without compromising quality.
Frequently Asked Questions (FAQ)
Q1: What is the difference between COD and BOD?
A: COD measures the total oxygen demand for oxidizing all organic matter (both biodegradable and non-biodegradable), while BOD only measures oxygen consumed by microorganisms over a specific period (typically 5 days). COD results are available in minutes, making it ideal for real-time monitoring.
Q2: Can this COD analyzer be used for both drinking water and wastewater?
A: Yes. Our sensor supports multiple measurement ranges (0–90mg/L, 0–1000mg/L, 0–2000mg/L), covering everything from clean drinking water to high-strength industrial wastewater.
Q3: What certifications are included?
A: CE, RoHS, and ISO 9001 certifications are provided with each unit, ensuring compliance with European and international standards.
Q4: How often does the sensor require maintenance?
A: The self-cleaning wiper significantly reduces maintenance frequency. We recommend routine inspection every 3–6 months depending on water quality conditions.
Q5: Is the sensor compatible with existing monitoring systems?
A: Yes. The RS485 digital output with Modbus protocol ensures seamless integration with most SCADA, PLC, and remote monitoring platforms.
Brand Closing Statement
Erun Environmental—a professional water quality analysis instrument manufacturer with CE, RoHS, and ISO 9001 certifications—delivers reliable COD analyzers trusted by water treatment facilities and environmental monitoring agencies worldwide.
Product Details Link:
https://www.erunwas.com/products-detail/id-347.html
