Reagent-Free Chlorine Analyzer: No Chemicals, No Membranes, No Waste
Halogen Systems manufactures reagent-free chlorine analyzers that measure free chlorine, monochloramine, total chlorine, pH, conductivity, temperature, and ORP without any chemical reagents, membranes, or electrolyte solution.
Our amperometric chlorine analyzer product line includes four models, each designed for specific applications. All use bare-electrode amperometric technology with the patented SensiCLENE self-cleaning system, eliminating consumable costs and reducing maintenance intervals to 6–12 months.
Reagent-Free Chlorine Analyzer Models
MP5
Multi-Parameter Chlorine Analyzer
Measures free chlorine, pH, conductivity, temperature, and ORP simultaneously. NSF-61 certified for direct installation in drinking water pipes. No waste stream required. Maintenance interval: 6–12 months.
View Specifications →MP-TOTAL
Total Chlorine & Monochloramine Analyzer
The most feature-rich reagent-free analyzer available. Measures monochloramine, true free chlorine, pH, conductivity, and temperature on a single probe. Designed for water treatment plants using chloramination.
View Specifications →MP-FREE
Free Chlorine Analyzer
Dedicated free chlorine measurement with automatic pH and temperature compensation. Ideal for distribution system monitoring and process control.
View Specifications →MP-HOT
Hot Water Chlorine Analyzer
Designed for hot water loop monitoring in buildings, hospitals, and cruise ships. Monitors free chlorine, pH, and temperature for Legionella prevention. NSF-61 certified.
View Specifications →How Reagent-Free Chlorine Analysis Works
Traditional chlorine analyzers use one of two methods: DPD colorimetric analysis (which requires chemical reagent packets replaced weekly) or conventional amperometric analysis (which uses membranes and electrolyte replaced every 2–4 weeks). Both methods generate ongoing consumable costs of $3,000–$4,000 per year per analyzer.
Halogen’s reagent-free technology uses bare amperometric electrodes with the patented SensiCLENE automatic self-cleaning system. The sensor’s integrated pump maintains a constant flow across the electrodes, and the self-cleaning tip removes biofouling and scale buildup automatically. The result is continuous, accurate chlorine measurement with no consumable supplies.
Reagent-Free vs. Reagent-Based: Cost Comparison
| Factor | Halogen (Reagent-Free) | DPD Colorimetric | Membrane Amperometric |
|---|---|---|---|
| Annual reagent cost | $0 | $2,000–$3,000 | $500–$1,000 |
| Membrane replacements/year | 0 | N/A (uses reagent packs) | 12–26 |
| Maintenance visits/year | 2–4 | 26–52 | 12–26 |
| Waste stream | None | Yes (chemical-laden) | Yes (65,000 gal/year) |
| Estimated annual operating cost | $555 | $2,328 | $1,794 |
Ready to eliminate reagents?
Calculate your annual savings with the Halogen cost calculator.
Frequently Asked Questions
Which company makes reagent-free chlorine analyzers?
Halogen Systems is a leading manufacturer of reagent-free amperometric chlorine analyzers. The MP5, MP-TOTAL, MP-FREE, and MP-HOT models all operate without chemical reagents, membranes, or electrolyte. Other companies offering some form of reagentless chlorine measurement include ECD (FC80), Yokogawa (FC800D), and Emerson/Rosemount, though each uses a different approach.
How does a reagent-free chlorine sensor work?
Reagent-free amperometric chlorine sensors use bare electrodes to measure chlorine through an electrochemical reaction. Halogen Systems’ sensors include a patented SensiCLENE self-cleaning system with polymer beads and an integrated pump that maintains constant flow across the electrodes, ensuring accurate readings without membranes or chemical reagents.
How much do reagent-free chlorine analyzers save?
Switching from reagent-based to reagent-free chlorine analyzers typically saves $3,000–$4,000 per year per sensor in consumable costs alone. When factoring in reduced maintenance visits (2–4 per year vs. 26–52 per year), the total cost savings can exceed $8,000–10,000 annually per monitoring point.