HALO® Bluetooth® Wireless pH Meter for Flat Surfaces - HI14142

SKU: HI14142


The HI14142 HALO is an innovative pH electrode with Bluetooth® Smart technology designed for flat surfaces

Our HALO® Wireless pH Meter for Flat Surfaces has a flat tipped glass sensor and an open junction design to measure pH on flat surfaces or small volume samples. All readings are transmitted directly to your Apple or Android device or the edge®blu.

One Press Connect

Easily connect to the Hanna Lab App at the press of a button via Bluetooth wireless technology.

activity indicator

Status Indicator

Visible from a distance, the LED “halo” light flashes to indicate the status of the probe.

replaceable battery

Easy-to-Replace battery

The HALOs CR2032 lithium ion battery is easily replaceable and lasts for approximately 500 hours.

Download the FREE app and try before you buy!
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HALOTM - Flat tip pH Probe with Bluetooth® Smart Technology

The HALO® Wireless pH Meter for Flat Surfaces incorporates Bluetooth® Smart technology with an application-specific design. There are several features that make it ideal for measuring the pH of agar plates, skin, or leather, by providing a flat glass tip that allows a larger surface area than a typical pH electrode..

Flat Tip Bulb

The flat shaped tip design allows for easy measurement on surfaces (such as agar plates, skin, leather, paper, and samples that cannot easily be penetrated) or samples with a small volume.

Low Temperature Glass Formulation

Low Temperature (LT) glass Low temperature glass for fast stabilization and more accurate results at lower temperatures. This is beneficial since many food products are stored at low temperatures.

Open Junction Design

The open junction design consists of a solid gel (viscolene) interface between the sample and internal reference. This interface not only prevents silver from entering the sample, but also makes it impermeable to clogging from food products, maintaining a fast response and stable reading.

Maintenance Free Gel-filled Reference

Because the internal reference is gel, there is no fill solution to replenish as the probe is used. Other than routine calibration and cleaning, this a maintenance free probe.

Built-in Temperature Sensor

The thermistor temperature sensor built into the tip of the pH electrode. A thermistor based temperature sensor provides for a high accuracy temperature while being in the tip of the electrode allows for a rapid temperature compensated measurement.

HALOTM - pH Probe with Bluetooth Smart Technology


Real-Time Data

Display of beer pH and temperature updated every second. Readings are automatically saved to a history file every hour, limited only by the available memory on the device.


Fluid, Dynamic Graphing

Measurements can be displayed alone on the display, with tabulated data, or as a graph. The graph can be panned and zoomed with pinch-to-zoom technology for enhanced viewing.


GLP (Good Laboratory Practice)

Displays date and time of current calibration, offset, and average slope, along with calibrated buffers, mV values, temperature and slopes between each buffer.

HALO pH probe features

Calibration Reminder & Measurement Alarms

The Hanna Lab App alerts you when HALO needs calibration or if a measurement threshold is exceeded.


Log & Share Data

Saved log files may be annotated with measurement-specific information. Data is easily shared via email in CSV format.


Help & Tutorials

Demo mode helps you explore features of the Hanna Lab App. General app information, HALO information, pH tutorial, maintenance tutorial, and contact information are available in help.

HALO Features/Benefits:

Connects to Hanna Lab App with a compatible Apple or Android Device via Bluetooth Smart Technology (Bluetooth 4.0)

Up to five-point pH calibration with seven standard pH buffers available
Calibration reminder
  • Alerts you when HALO pH meter for beer needs calibration
  • Appropriate preprogrammed calibration buffer set for application specific Halo pH electrodes
Real-time data
  • Displays pH and temperature updated every second
Basic Good Laboratory Practice (GLP)
  • Displays date and time of current calibration along with offset and average slope
Full GLP
  • Displays date and time of current calibration, offset and average slope along with calibrated buffers, mV values, temperature and slopes between each buffer
Fluid, dynamic graphing
  • Measurement can be displayed with tabulated data or as a graph. The graph axes may be expanded using pinch-to-zoom technology for enhanced viewing
Measurement alarms
  • Alerts you if the measurement threshold is exceeded
One button sample tagging
  • Pressing either the icon in the Hanna Lab App or button on the HALO will tag sample data for easy reference
Data logging with custom annotations
  • Saved log files may be annotated with measurement  specific  information
  • Data is autosaved every hour
Four ways to save and share data:
  • All data since last autosave
  • Annotations only
  • All data within a timed interval
  • Annotations only within a timed interval
Share data via email in CSV format

Help and tutorials:
  • Demo mode to help explore features of the Hanna Lab App
  • General app information
  • General HALO information
  • pH tutorial
  • Maintenance tutorial
  • Contact information


HALO is compatible with the following devices:

Compatible with most devices equipped with Bluetooth Smart Technology (Bluetooth 4.0) and running Android 4.3 or later.

iPad (3rd generation or newer)
iPhone (4S or newer)
iPod Touch (5th generation or newer)

HI2202 edgeblu Meter

Information about which products have Bluetooth Smart Technology (4.0), also known as low energy (LE), can be found here.

More Information
SKU HI14142
Product Name HALO® Bluetooth® Wireless pH Meter for Flat Surfaces - HI14142
Quote Required No
Measurement Range 0.00 to 12.00 pH
Reference Cell Type double, Ag/AgCl
Junction Type/Flow Rate open
Type of Electrolyte Viscolene
Body Material glass
Glass Type Low Temperature (LT)
Tip / Shape flat
Optimum pH Range 0 to 12 pH
Temperature Operating Range 0 to 50°C (32 to 122°F)
Body Length/Overall Length 50 mm / 114 mm
Temperature Sensor built-in
Outer Diameter 12 mm (glass)
Connector Type Bluetooth Smart (Bluetooth 4.0), 10 m (33') range
Battery Type/Life CR2032 3V lithium ion / approximately 500 hours
Amplifier Yes
Recommended Use flat surface
Range -2.000 to 16.000 pH
±800 mV
-20.0 to 120.0 ºC *(will be reduced to actual probe/sensor limits)
Resolution 0.1, 0.01, 0.001 pH
1, 0.1 mV
0.1 ºC
Accuracy (@25ºC/77ºF) ±0.005 pH
±0.3 mV
Calibration Points up to five points with seven standard buffers
Calibration Buffers 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45 pH
Temperature Compensation automatic from -5.0 to 100.0 ºC / 23.0 to 212.0 ºF *(will be reduced to actual probe/sensor limits)
Compatibility/System Requirements Android
Download Information Hanna Lab App is available free from the Play Store or App Store
Ordering Information HI14142 (HALO) is supplied with storage solution, cleaning solution, pH 7.01 buffer solution, pH 4.01 buffer solution, battery, quality certificate and instruction sheet. Smartphone and tablet not included.
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