Hanna Instruments HI9810302 HALO2 – Bluetooth soil pH meter for soil analysis
The Hanna Instruments HI9810302 HALO2 is a wireless pH meter for measuring the acidity or alkalinity of soil samples. It includes soil pH measurement, temperature measurement and Bluetooth connectivity for transferring measurement results via Bluetooth to a compatible smartphone or tablet through the Hanna Lab app.
Soil pH is an important factor in agriculture, horticulture, greenhouse production and overall soil management. It indicates how acidic or alkaline a soil sample is on a scale from 0 to 14. If the pH value is below 7, it means the soil is acidic, a pH of 7 means neutral conditions, and a pH above 7 indicates alkaline conditions. Soil pH affects the availability of nutrients for plant roots and can influence the absorption of nutrients by plants.
The HI9810302 can be used by individuals interested in determining soil conditions and conducting pH measurements of soils. It can be used for routine soil checks, comparisons of soils, tracking changes in soil condition. With a compact design, it is portable and can be used in different locations without having to use bulky bench measuring devices.
The Bluetooth connectivity provides another possibility of working with measurement results. Connected to a compatible mobile device, the meter will be able to communicate with the Hanna Lab application, which will provide functions for viewing and managing measurement results.
So how does the Hanna Instruments HI9810302 measure soil pH?
For measurement, the meter uses a pH-sensitive electrode, which determines the hydrogen ion activity in the soil being tested. The instrument transforms the response of the electrode to electric signal into pH result. The temperature measurement is also performed and provides additional information about the sample.
The soil pH measurement can show whether soil conditions could affect the availability of nutrients in the soil. If the sample has low pH, it can indicate that the soil is acidic. And high pH shows that the soil is more alkaline. These results can be taken into account along with other factors, such as soil type, nutrient content, irrigation, etc.
To obtain reliable results, the soil sample needs to be prepared and tested according to the instruction of the manufacturer. Soil moisture, the contact of the electrode with the sample, sample contamination, calibration of the instrument can affect measurement results.
Main features and practical applications
- Soil pH measurement: Enables soil pH measurement.
- Temperature measurement: Provides temperature reading alongside pH.
- Bluetooth connectivity: Provides wireless communication with a compatible mobile device.
- Hanna Lab app compatibility: Allows to view and manage measurements via mobile app.
- Compact design: Convenient for routine checks in different places.
- Calibration: Maintains measurement accuracy during the calibration with appropriate reference solutions.
Technical specifications
These specifications refer to HI9810302 model. Consult the instructions provided by the manufacturer for specific measurement and calibration procedures.
- Brand: Hanna Instruments
- Product line: HALO2
- Model: HI9810302
- Type of product: Wireless soil pH meter
- pH measurement range: 0.00 to 12.00 pH
- pH measurement accuracy: ±0.05 pH
- Temperature range: 0 to 60 °C
- Temperature accuracy: ±0.5 °C
- Calibration: Automatic up to 3 points, up to 4 through the app
- Wireless connection: Bluetooth
- Protection rating: IP65
- Battery: CR2032, 3 V
- Dimensions: 51 x 150 x 21 mm
- Weight: 45 g
Do not confuse these technical specifications with the ones of other HALO2 models, since they use different types of electrodes and measurement ranges.
Download Hanna Lab app
The Hanna Lab app is available free of charge from the official stores of apps. This app allows the compatible HALO and HALO2 probes to communicate with the mobile device and perform display, recording and review of measurement results. It provides features for graphs, measurement logging and, if it is supported by the instrument, for Hanna Cloud.
Hanna Lab
Official app by Hanna Instruments
Free download for compatible devices
iPhone and iPad
Requires iOS 15.0 or later.
Android
Requires Android 8.1 or later and Bluetooth 4.0.
Suitable applications
The Hanna Instruments HI9810302 is intended for soil pH testing in applications such as:
- Agriculture: Soil acidity testing in cultivated lands and comparison of different soils.
- Horticulture: Analysis of growing medium and investigation of growing conditions of plants.
- Greenhouses and nurseries: Routine soil pH testing for the estimation of growing conditions.
- Soil testing and research: Taking pH readings for the comparisons of different soil samples or changes in time.
- Gardening and landscaping: Soil conditions analysis for the choice of plants or management of soil conditions.
The instrument performs pH and temperature measurements. It does not perform nutrient concentration, electrical conductivity (EC) and soil fertilizers measurement.
Operation, calibration and maintenance
Before the measurements, consult the instructions of the manufacturer for the soil preparation, electrode insertion and cleaning. Use the appropriate calibration buffers and calibrate the instrument according to the recommended schedule.
After the usage, clean the measuring electrode according to the instruction supplied with the instrument. Soil residue can affect the contact of the electrode with the sample and can affect the subsequent measurements. Do not use any harsh substances or cleaning solutions for the cleaning of the electrode.
The IP65 rating means protection against dust intrusion and water jets under specified test conditions. The meter cannot be submerged into water. The meter should be handled and stored according to the manufacturer's recommendations and the battery should be replaced if necessary.
For Bluetooth communication, enable Bluetooth on the compatible mobile device and connect the instrument according to the instructions in the Hanna Lab app. The functions and data management capabilities of the app can depend on the instrument you use and the version of the app.
