Remote Chlorine Analyzer for 
Drinking Water Applications

The stable calibration and self-cleaning technology in the MP5™ chlorine sensor enable reliable low-maintenance remote tank and water grid monitoring.

Use the NSF-61 capable MP5 chlorine analyzer to monitor chlorine and other parameters at remote tanks, distribution trunks, or end-of-line areas in the water grid.

Because traditional chlorine sensors require frequent maintenance, analyzing chlorine residuals across a water grid or in remote tanks has long been a highly manual process, requiring truck roll-outs and grabbing samples.  

Unlike maintenance-intensive sensors, Halogen’s MP5™ Chlorine Sensor is self-cleaning and has been shown to maintain stable calibration for months in drinking water applications. In addition, the MP5™ is the only chlorine analyzer approved for NSF-61 use in drinking water tanks or pipes with no required waste stream.

Halogen has remote monitoring solutions that combine any MP5 with a battery and cellular-enabled remote telemetry. For remote tank operations, the MP5™ can be suspended in a tank, inserted in the fill pipe, or deployed at the outflow. In a similar fashion, MP5™ sensors can be deployed throughout a water grid without needing the electrical grid.

Operators can measure free chlorine, pH, temperature, conductivity, and ORP at nearly any point in the grid that has a cell signal. 

Remote Monitoring with the MP5™ Chlorine Analyzer

Halogen Systems, Inc - MP5 NSF-61 Amperometric Chlorine Sensor lineup


The NSF-61 certified, Halogen MP5™ measures 5 testing parameters in near-time using one online unit without losing a drop of treated water. Operators can assess free chlorine, pH, temperature, conductivity, and oxidation-reduction potential (ORP) in near-time in the pipe with no waste stream.


The MP5™ analyzer makes things simple. Our NSF-61 certification means no flow-control plumbing and no waste stream to mitigate. There are no reagents or membranes to stock, manage, or replace. Instead, you’ll replace the cap, cleaning beads, and impeller blade once per year in 5 minutes without affecting the calibration.

Halogen MP5 Chlorine Sensor NSF-61 Unaffected by flow and pressure


The MP5™ adapts to nearly any flow or pressure. Even a dry pipe won’t ruin the calibration. It can be installed directly in a pipe, located side-stream, suspended in a trough, or simply dropped in a tank. Whatever the deployment type or parameters, the MP5™ is unique in accuracy, reliability, and stability.

Amperometric Sensors With Patented Technology to Modernize Your Testing

Bare Electrode Sensor

Amperometric Sensors have many advantages over the older membrane and reagent technology.  Halogen’s implementation of bare 3-electrode amperometric technology provides pH-stabilized precise measurements of Free Chlorine without introducing additional complexity to your workflow.

Self Cleaning

The old amperometric technology used by competitor sensors still requires a membrane and electrolyte to guard against sensor fouling. Such membranes are sensitive to flow and pressure spikes. Halogen’s patented SensiCLĒNE™ technology prevents fouling without introducing pressure or flow sensitivity.


Kit with flow-cell deployment (H1LF-P) and display controller  along with a wall mounting plate,  provides a drop-in upfit sensor replacement.

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Battery power and remote telemetry for an MP5™ deployment. Use for outer grid monitoring, dead-ends, or other remote implementations.

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Leverage the dependability and low maintenance of the MP5™ for remote tank monitoring with battery power and remote telemetry.

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Retractable remover kit for MP5™ wet-tap analyzer (H1WT-P) in water pipes allows for maintenance without interrupting flows.

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This deployment uses a water-proofed low-flange MP5™ (H1LF-P), a sourced boom and harness, or can simply be placed in a tank or trough.

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Combine a mid-flange MP5™ (H1MF-P) with an adapter sleeve—in PVC or Stainless steel—sized for deployments in a 2″ PVC tee.

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Fits low-flange MP5™ (H1LF-P) and adapts for side stream and control board usage based on which flow cell type  is ordered. 

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Both 24V DC (D1) and 120-240V AC (CN-01) versions feature (4) 4-20 Ma analog outputs, and an M-12 Connector with stress relief. 

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Have Questions? Get Answers.

If the technologies and benefits listed above raise any questions, you may find the answer you’re looking for in the FAQ or Technologies pages. 

Our contact page also allows you to reach out with a specific question and we’ll get back to you as quickly as possible.