Hanna HI12922 pH/temperature electrode for direct soil
The Hanna HI12922 pH/temperature electrode for direct soil is a Bluetooth®-enabled pH and temperature electrode engineered specifically for direct soil pH measurement, agriculture, and hydroponics. Its conic tip (12 x 12 mm) ensures easy penetration into moist soil, while the triple ceramic junction provides stable measurements even in low-moisture environments.
Moreover, the built-in temperature sensor allows automatic temperature compensation, resulting in more accurate pH readings across varying field conditions. Since it communicates wirelessly through Bluetooth® Smart (Bluetooth 4.0), this electrode pairs seamlessly with the Hanna Lab App for real-time data visualization, calibration, and logging.
Key Features
Purpose-Built for Soil: The conical tip design is ideal for direct insertion into soil samples and semi-solids.
Triple Ceramic Junction: Enhances electrolyte flow, especially in low-conductivity samples like soil or compost.
Integrated Temperature Sensor: Ensures temperature-compensated pH readings without extra probes.
Bluetooth® Smart Connectivity: Offers a wireless range of up to 10 meters with iPads using iOS 7.1 or newer.
Hanna Lab App Compatible: Enables advanced data tracking, multi-point calibration, and exportable logs.
Technical Specifications
| Parameter | Details |
|---|---|
| Measurement Range | pH: 0 to 12 |
| Reference System | Double, Ag/AgCl |
| Junction Type | Triple ceramic |
| Electrolyte | 3.5M KCl |
| Tip Shape | Conic (12 x 12 mm) |
| Body Length / Overall | 120 mm / 195 mm |
| Operating Temp. Range | -5 to 70°C |
| Environment | 0.0 to 50.0°C (electronics not waterproof) |
| Temperature Sensor | Integrated |
| Body Material | Glass |
| Connection | Bluetooth® Smart (Bluetooth 4.0), 10 m range |
| Battery Type / Life | CR2032 3V lithium ion / approx. 500 hours |
Hanna Lab App Specifications
Measurement Range: -2.000 to 16.000 pH; ±800 mV; -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: Works with iPad 3rd generation or newer (including iPad mini) with iOS 7.1+ and Bluetooth® 4.0
Applications
Direct soil pH analysis
Hydroponic nutrient solution monitoring
Agricultural research and field measurements
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