The Only NSF-61 Certified Chlorine Sensor
Multiparameter: measures free chlorine and monochloramine in Drinking Water and Hot Water.
Why Operators Choose Halogen
Self-Cleaning
Integrated SensiCLENE™ mechanical cleaning system ensures accurate readings even in high-fouling environments.
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NSF-61 Certified
The industry's gold standard for materials and products that come into contact with drinking water.
Learn More arrow_forwardFlow Independent
Maintains accuracy regardless of water flow velocity, ideal for static tank monitoring and dead-end lines.
Learn More arrow_forwardMultiparameter
Single sensor measures Chlorine, pH, ORP, Conductivity, and Temperature simultaneously.
Learn More arrow_forwardDirect In-Pipe
Install directly into main lines without bypass pumps or sample lines, reducing complexity and waste.
Learn More arrow_forwardNo Maintenance
Eliminate reagent replenishment and monthly maintenance visits. Annual wear parts swap takes minutes. $555/year total.
Learn More arrow_forwardInstall Anywhere
Wet-tap into a main, immerse in a tank, mount in a vault, or drop into a reservoir. No sample panel needed.
Learn More arrow_forwardWorks in Zero Flow
Dead ends, storage tanks, clearwells — reads accurately even when water isn't moving. No minimum flow requirement.
Learn More arrow_forwardRemote Monitoring
Battery-powered with cellular or Bluetooth telemetry. IoT cloud delivers real-time data from off-grid sites.
Learn More arrow_forwardNot sure which
sensor fits
your site?
Answer three quick questions about where you’re measuring, how you’re installing, and what power is available — we’ll recommend the exact sensor and mount model.
Where are you measuring chlorine?
Select the environment that best fits your application.
3 questions — takes less than 30 seconds
Trusted by Water Districts Worldwide
“The reduction in maintenance hours alone paid for the sensors in less than six months. The accuracy in static water conditions is unmatched.”
Michael R.
Plant Manager, Metro Water District
“Finally, a sensor we can trust in our drinking water network. The NSF-61 certification was the deciding factor for our engineering team.”
Sarah J.
Chief Water Quality Engineer
“Direct in-pipe installation saved us thousands in plumbing and pumps. It's the most reliable amperometric sensor we've ever tested.”
David L.
Technical Operations Director
Ready to Eliminate Reagents and Reduce Waste?
Join hundreds of water facilities that have upgraded to Halogen’s maintenance-free chlorine analysis technology.