Water safety is a universal priority across every industry. From municipal drinking water to public swimming pools, hospital wastewater to food and beverage production, precise monitoring of disinfectant levels is non-negotiable for maintaining health standards and regulatory compliance. Residual chlorine, total chlorine, and chlorine dioxide are the most critical parameters for measuring disinfection efficacy—and demand for reliable testing solutions is stronger than ever.

Disinfection is the backbone of safe water management. Chlorine-based treatments prevent the spread of waterborne diseases, making these parameters essential health indicators in every corner of the world.
• Tap Water & Municipal Water Supplies: Ensure safe drinking water by maintaining optimal residual chlorine levels to protect against pathogens in distribution networks.
• Swimming Pools & Recreational Water: Protect swimmers from bacteria and algae while preventing skin and eye irritation.
• Hospital & Medical Wastewater: Eliminate harmful pathogens before discharge to protect public health.
• Food & Beverage Processing: Sanitize process water and equipment to meet strict food safety standards.
• Cooling & Industrial Water: Control microbiological growth in cooling towers and recirculating systems.
This global public health need creates a stable, high-demand market with consistent repeat orders—making chlorine detection equipment one of the most reliable export categories in water quality instrumentation.
Chinese manufacturers have mastered both electrode method and DPD colorimetric technologies, offering exceptional performance at competitive prices. Today’s domestic analyzers match international brands in precision while providing greater value, faster delivery, and superior customization.
Our product lines cover:
• Portable handheld testers for field testing and spot checks
• Online continuous monitors for 24/7 industrial applications
• Benchtop laboratory analyzers for high-precision analysis
• Multi-parameter systems that measure chlorine alongside pH, ORP, temperature, and turbidity
The ERUN-WQS-6020 multi-parameter water quality analyzer from ERUN Environmental represents the pinnacle of Chinese water monitoring technology. Engineered for global markets, this system combines advanced performance with practical design to excel in demanding environments.
✅ Fast Response Time
Delivers accurate readings in seconds—critical for real-time process control and emergency response.
✅ Superior Anti-Interference Capabilities
Maintains precision in complex water matrices, unaffected by temperature, pH fluctuations, or impurities.
✅ Minimal Maintenance
Designed for long-term operation with easy sensor replacement and infrequent calibration.
✅ Built for Harsh Conditions
IP65/IP67 waterproof and dustproof construction withstands humidity, temperature extremes, and challenging industrial environments.
✅ Flexible Measurement
Simultaneously monitors residual chlorine, total chlorine, chlorine dioxide, plus optional pH, ORP, temperature, and turbidity.
• Measurement Range: Residual chlorine 0–5 mg/L (0–20 mg/L optional)
• Resolution: 0.001 mg/L for ultra-precise detection
• Accuracy: ±5% or ±0.05 mg/L (whichever is greater)
• Display: 7-inch color touchscreen for intuitive operation
• Output: 4–20 mA, RS485 (Modbus), 4G wireless remote transmission
• Certifications: CE, FCC, RoHS, ISO 9001 compliant

The ERUN-WQS-6020 is purpose-built for the world’s highest-demand water treatment sectors:
1. Municipal Water Plants
• Continuous residual chlorine monitoring in distribution networks
• Ensures compliance with WHO and local drinking water standards
2. Public & Commercial Swimming Pools
• Real-time monitoring of free chlorine, combined chlorine, and pH
• Protects swimmers and simplifies compliance with health codes
3. Hospital & Healthcare Facilities
• Reliable disinfection control for medical wastewater
• Prevents the spread of infectious agents
4. Food & Beverage Industry
• Sanitation monitoring for process water, CIP systems, and final rinsing
• Meets FDA, HACCP, and GMP requirements
5. Cooling Towers & Industrial Circulating Water
• Controls biofouling and Legionella risks
• Reduces chemical costs while maintaining system efficiency
• Proven Export Experience: Ships to over 80 countries with full customs and compliance support
• Cost Advantage: 30–50% lower than international brands with equal or better performance
• Customization: Flexible configurations to meet regional standards and specific needs
• Global Support: Local service partners and multilingual technical assistance
• Rapid Delivery: Standard models in stock; custom orders fulfilled in 7–15 days
In today’s health-focused global market, reliable chlorine monitoring isn’t just an option—it’s a necessity. ERUN Environmental’s ERUN-WQS-6020 series provides the perfect combination of speed, accuracy, durability, and value for water treatment professionals worldwide.
Whether you’re equipping a municipal water system, operating a chain of swimming pools, managing a food processing plant, or ensuring hospital safety, the ERUN-WQS-6020 delivers consistent performance in even the harshest conditions.
Contact ERUN Environmental today to learn how our chlorine analyzers can strengthen your water safety protocols, reduce operational costs, and support your export or local operations.