New Jersey S2188
Legionella Compliance
New Jersey's Senate Bill 2188 sets strict standards for Legionella prevention, requiring a minimum of 0.3 mg/L free chlorine or 1.0 mg/L monochloramine at all points in public water systems.
Halogen Systems' NSF 61 certified MP5 sensor is the ideal solution for continuous, unattended compliance monitoring — no reagents, no waste stream, no weekly maintenance.

MP5 Tee-Mount Sensor

Wet-Tap Sensor
What the Law Requires
Senate Bill S2188 mandates continuous disinfectant residual monitoring at all points in public water systems to prevent Legionella colonization. These are the minimum thresholds:
| Parameter | Minimum Level | Notes |
|---|---|---|
| Free Chlorine | ≥ 0.3 mg/L | At all points in public water systems |
| Monochloramine | ≥ 1.0 mg/L | Alternative disinfectant threshold |
| Monitoring | Continuous | All points in the distribution system |
Why the MP5 Is Ideal for S2188 Compliance
Halogen's maintenance-free sensor offers six months of unattended operation, measuring chlorine, pH, conductivity, and temperature — suitable for deployment at any point in your distribution system.
Direct In-Pipe Installation
NSF 61 certified for direct contact with drinking water. Install via wet-tap or tee-mount at any compliance monitoring point — no sample panel needed.
No Waste Stream
Saves approximately 70,000 gallons of treated water annually compared to reagent-based analyzers that require continuous sample flow.
Battery Operation Capable
IP68-rated battery enclosure supports six months of autonomous operation — ideal for locations without reliable AC power.
Remote & Cloud Reporting
Cellular modem option delivers real-time chlorine, pH, conductivity, and temperature data to the Halogen Cloud or your existing SCADA system.
Unaffected by Flow or Pressure
Accurate readings in zero-flow dead ends, low-pressure zones, and high-velocity mains up to 145 PSI and 4.5 m/s.
Free Chlorine or Monochloramine
Field-selectable measurement mode covers both disinfection strategies required under S2188 without swapping hardware.
Monitor Compliance from Anywhere
Equipped with an optional cellular modem, the sensor transmits real-time water quality data from any location — campgrounds, rest stops, storage tanks, or remote distribution points. Data is accessible through the Halogen Cloud or integrates directly into your existing SCADA or cloud systems.
Stay compliant and protect public health with continuous monitoring that replaces manual grab samples and provides 24/7 documentation for regulatory reporting.
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Stay compliant with NJ S2188.
Deploy continuous chlorine monitoring at every point in your distribution system — protect public health and simplify regulatory reporting.
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