The Hanna HI-12302 HALO is a Bluetooth-enabled pH and temperature electrode that wirelessly connects to a tablet, mobile phone, or Hanna Edge-Blu pH meter. It has a PEI body, a spherical, general-purpose glass sensing bulb, and a double junction design that prevents silver chloride (AgCl) contamination.
When paired with the Hanna Lab App, the HI-12302 transforms a tablet or phone into a fully-featured pH meter. It offers real-time pH and temperature measurements with data logging, calibration, and graphing capabilities.
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| Reference | Double, Ag/AgCl |
| Junction | Ceramic, single |
| Electrolyte | Gel |
| Range | 0 to 12 pH |
| Tip Shape | Spheric |
| Diameter | 12mm |
| Overall Length | 165mm |
| Environment | 0.0 to 50.0°C, the electronic module is not waterproof |
| Recommended Operating Temperature | -5.0 to 70.0°C |
| Temperature Sensor | Yes |
| Body Material | PEI |
| Connection | Bluetooth® Smart (Bluetooth 4.0), 10m range |
| Battery Type/Life | CR2032 3V lithium ion/approximately 500 hours |
| Hanna Lab App Specifications | |
|---|---|
| Range | -2.000 to 16.000 pH; ±800mV; -20.0 to 120.0°C |
| Accuracy (@25°C) | ±0.005 pH; ±0.3 mV; ±0.5°C |
| Calibration Points | Up to five-point calibration with seven standard 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°C |
| Compatibility/System Requirements | Hanna Lab App works with iPad 3rd generation or newer (including iPad mini) with Bluetooth® 4.0 technology and iOS 7.1 or newer |