smartphoneFree on iOS & Android

Halogen Sensor
Mobile App

Monitor real-time water quality data, calibrate sensors, configure measurement settings, and receive diagnostic alerts — all from your phone via Bluetooth Low Energy.

sensors

Halogen Sensor

Mobile

Free Cl₂1.24 ppm
pH7.42
Temp18.3 °C
Battery12.6 V
bluetooth

Works With

Bluetooth SmartBox

tune

Works With

D20 Controller

sensors

Supports

All MP-Series Sensors

wifi_off

Connectivity

No Internet Required

Everything You Need in the Field

The Halogen Sensor Mobile app puts full sensor control in your pocket. Monitor, calibrate, configure, and diagnose — no laptop or display module required.

monitoring

Real-Time Monitoring

View live readings for free chlorine, monochloramine, total chlorine, pH, ORP, conductivity, and temperature — all updating as the sensor completes each measurement cycle.

bluetooth

Bluetooth Low Energy

Connect wirelessly to any Halogen Bluetooth SmartBox or D20 Controller within range. Low-power BLE means reliable connectivity without draining your phone battery.

tune

In-App Calibration

Perform fast or delayed chlorine calibrations, zero chlorine calibration, single-point or two-point pH buffer calibrations, plus conductivity, ORP, and temperature — all from your phone.

settings

Sensor Configuration

Configure chlorine measurement modes (Free, Mono, Total), enable or disable ORP and pH, set intermittent measurement intervals for battery operation, and adjust averaging settings.

battery_charging_full

Battery Management

Monitor battery voltage in real time and configure power-saving modes. Set measurement frequency to balance data collection with battery life for remote installations.

warning

Warnings & Diagnostics

Receive instant warning and error code notifications including air-in-sensor, motor errors, and calibration alerts. View detailed diagnostic information and corrective actions.

8 Parameters, One Screen

All pertinent sensor data displayed in real time with timestamp indicators showing when each measurement was last collected.

Free Chlorine

ppm

Disinfection effectiveness monitoring

Monochloramine

ppm

Combined chlorine for chloraminated systems

Total Chlorine

ppm

Overall disinfection validation

pH

pH

Water acidity/alkalinity balance

ORP

mV

Oxidation-reduction potential

Conductivity

µS/cm

Dissolved solids concentration

Temperature

°C / °F

Process water temperature

Battery Voltage

V

SmartBox power level status

Field Calibration Made Simple

Every calibration your sensor needs is accessible through the app's intuitive menu system. No laptop, no proprietary software — just your phone and a reference colorimeter.

infoCalibration Best Practices

  • check_circleAllow sensor to run in water for at least 20 minutes before calibrating
  • check_circleAlways calibrate pH first, then chlorine
  • check_circleCheck calibration at least every 6 months
  • check_circleRecalibrate if deviation exceeds 10% from reference
1

Fast Chlorine Cal

Calibrate free, mono, and total chlorine simultaneously using a reference colorimeter when values are stable.

2

Delayed Chlorine Cal

Captures sensor signal at sample time, giving you up to 10 minutes to complete the DPD test — ideal for fluctuating systems.

3

Zero Chlorine Cal

Automatic offset calibration in chlorine-free water. Use process water with excess ammonia — never distilled water.

4

pH Buffer Cal

Single-point known value or two-point buffer calibration (pH 7 and pH 10 auto-detected) for accurate pH compensation.

5

Reference Cals

Conductivity, ORP, and temperature calibrations using known reference values entered directly in the app.

6

Factory Restore

Reset all calibrations to factory defaults with one command. Useful for resolving persistent measurement errors.

Built for Remote Operations

Configure intermittent measurement modes and power-saving settings for battery-operated installations in vaults, meter boxes, and remote stations.

schedule

Intermittent Measurements

Set custom data collection intervals. The SmartBox powers down the sensor between cycles and enters sleep mode to maximize battery life.

touch_app

Magnet Wake-Up

In sleep mode, use the supplied magnet on the SmartBox to re-enable BLE. The device becomes accessible via the app within 10 seconds.

bolt

Measure Now

Need a reading between intervals? The Measure Now button powers on the sensor for a single cycle, then returns to sleep — no schedule changes needed.

Frequently Asked Questions

What devices does the Halogen Sensor Mobile app work with?

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The app connects via Bluetooth Low Energy (BLE) to the Halogen Bluetooth SmartBox (BTSB) and the D20 Controller. It works with all Halogen MP-series sensors including the MP5, MP-TOTAL, MP-HOT, and MP-ORP.

Is the app available on both iOS and Android?

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Yes. The Halogen Sensor Mobile app is available for download on both the Apple App Store (iOS) and Google Play Store (Android).

Can I monitor multiple sensors from one phone?

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Yes. The app can detect and connect to multiple Bluetooth SmartBox devices. Each device can be given a custom name so you can easily identify units when multiple devices are deployed at the same facility.

How do I connect to a SmartBox in battery-saving sleep mode?

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When the SmartBox is in intermittent measurement mode, BLE is disabled during sleep. Use the supplied magnet on the indicated area of the SmartBox to wake BLE. The device will be accessible via the app within 10 seconds.

Does the app work without cellular or Wi-Fi signal?

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Yes. The app communicates directly with the SmartBox via Bluetooth Low Energy. No internet connection is required for on-site monitoring, calibration, or configuration. Cellular connectivity on the SmartBox is a separate feature for remote telemetry.

How often should I calibrate through the app?

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Halogen recommends checking calibration upon initial installation and at least every six months thereafter. If the reading deviates by more than 10% from a reference colorimeter, recalibrate. Always allow the sensor to run in water for at least 20 minutes before calibrating.

Download the App Today

Get started with the Halogen Sensor Mobile app. Free to download, works with all Halogen Bluetooth SmartBox and D20 Controller units.