In 2015, Hanna Instruments was the first manufacturer to incorporate Bluetooth® LE technology into a pH electrode. This innovation allowed for wireless measurements to be performed. All readings are transmitted directly to compatible Apple® or Android® device running the Hanna Lab App. An advanced measurement system is created with the use of a smart device and Halo pH electrode. This measurement system rivals many portable and benchtop meters available on the market with advanced features including:  

  • Five point calibration
  • Good Laboratory Practice (GLP) for tracking calibration information
  • Data logging and graphing
  • Ability to email and share data
  • Built in temperature sensor for automatic temperature compensation (ATC)
  • Hanna’s unique CAL Check for identifying issues with the probe


All Halo probes are compatible with edgeblu tablet style pH meters. We offer a variety of Halo pH probes and each are built based on the intended application which is critical to obtain accurate, reliable measurements.

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