Direct Pipe Insertion or Side Stream TRO Sensors
  • Lower installation & maintenance costs
  • Flow Independant
  • Fast response
  • Reliable performance
  • Hot Tap Installation
  • Hot Tap Valve allows removal without draining ballast pipe
  • No discharge of reagents or a waste stream
  • Self-Cleaning
  • Operates from -2°C to 35°C 
  • Long interval between calibrations


Halogen Systems MP5™ Chlorine Analyzer Designed For Wastewater Treatment Plants

The MP5™ is designed to measure 5 parameters in one integrated package. It uses proprietary technology that maintains a stable calibration for months even in tough environments like water reclamation. 

We use bare electrodes, eliminating the need to replace clogged membranes or replenish electrolyte required by conventional amperometric sensors. The result? Much lower maintenance requirements. Other amperometric sensors become inaccurate over time from diluted electrolyte and require periodic sensor recalibration. Our sensor removes the need for this. Its self-cleaning feature is made with polymeric beads and abrade the electrodes to minimize biofouling and removes any calcium buildup. (SensiCLÉNE™)

Municipal Drinking Water

Chlorine Sensor for Drinking Water Distribution Systems

Drinking water distribution systems present special challenges for residual chlorine monitoring.  Below is a list of some characteristics of HSI’s new sensor based on its Seawater Platform:

  • Low cost of operation
  • Long-term unattended operation
  • Operation and accuracy at varrying flow rates
  • No discharge of reagents or a waste stream
  • Reliable performance
  • Connection to SCADA system
  • Hot Tap Installation for immersion into a pipe
  • Life-time chlorine sensor
  • Long interval between calibrations
  • Differential pH sensor ( with 2 to 3 year life)
  • Low initial cost

Commercial swimming pools

Halogen Systems Free Chlorine sensor uses the amperometric technique (PPM) and is ideally suited for use in swimming pools. Since many operators are accustomed to using ORP, the Swimming Pool Controller displays both ORP and PPM chlorine by default. The ORP method uses a patent pending method Rapid Response ORPTM prevents absorption of organics when high levels of cyanuric acid are present (see below).

It is a multi parameter sensor that  measures 5 parameters:
  • Free Chlorine
  • pH
  • Rapid Response ORPTM
  • Conductivity
  • Temperature
With these unique features:
  • Self-cleaning electrodes
  • Flow independent operation
  • Long life free chlorine sensor
  • Replaceable pH cartridge
  • Low maintenance
  • No reagents, electrolyte or membranes to replace

Cooling Towers

Cooling towers are notoriously difficult applications for chlorine and bromine sensors.

Many operate at high cycles of concentrations (very high conductivity and hardness) and often use film forming corrosion inhibitors and have organic contaminants.  HSI’s sensor is ideally suited for these challenging applications.  It can measure either chlorine or bromine and its self-cleaning features clean the electrodes continuously.  Its built-in conductivity sensor can eliminate several discrete sensors.