HI12302 HALO Bluetooth pH Meter

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The HALO Wireless Field pH Meter has a durable PEI body and spherical sensing bulb. All readings are transmitted directly to your Apple or Android device or the edge®blu via Bluetooth.

Take laboratory grade pH and temperature measurements using your smartphone or tablet. The HALO easily connects to the Hanna Lab App at the press of a button via Bluetooth wireless technology. Group your data by time or notification. Email it for storage or share it with friends or colleagues. 

The HI12302 is supplied with storage solution, cleaning solution, pH 7.01 buffer solution, pH4.01 buffer solution, battery, quality certificate and instruction sheet. 



  • Real-Time Data
  • Measurements can be displayed alone, with tabulated data, or as a graph
  • Calibration Reminder
  • Log and Share Data
  • Easy to Use App
  • Automatic Temperature Compensation



  • Range:
    • pH: 0.00 to 12.00
    • Temperature: 32°F to 158°F
  • Resolution:
    • pH:0.1, 0.01, 0.001 pH
    • Temperature: 0.1°
  • Accuracy:
    • pH: ±0.005 pH 
  • Battery Type/Life: CR2032 3V lithium ion / approximately 500 Hours
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  • 2
    Software clunky, not good for long term monitoring

    Posted by Ben M on Jun 14th 2019

    I had hoped to use this for continuous monitoring of aquarium pH. This meter can only be used for infrequent short term monitoring. It measures in 1 second increments only - this is far too rapid for long term monitoring. The unit easily loses bluetooth connectivity to your device and must be manually paired whenever a new reading is desired.

    Short term measuring of pH can easily be accomplished with a cheap handheld unit. The wireless feature seems relevant only in a longer term monitoring situation, which this unit can't support.