The GroLine pH/Temperature Tester is a compact meter designed for measuring the pH of hydroponic nutrient solutions. Its ergonomic design ensures comfortable handling, while the large, easy-to-read LCD provides readings for both pH and temperature, as well as indicators for calibration, stability, and low battery. Operating this device is straightforward, with just two buttons: one for power and the other for automatic one or two-point calibration.

This GroLine pocket pH Tester offers an economical solution for monitoring the pH of hydroponic nutrient solutions, crucial for promoting optimal growth. Maintaining the right pH level is vital as it affects mineral and nutrient solubility, impacting plant uptake and growth. Additionally, pH can influence nitrogen-fixing bacteria crucial for plant health. Different plants thrive within specific pH ranges, detailed in the provided table.

The GroLine pH/Temperature Tester is versatile, and capable of measuring pH in both soils and nutrient solutions. For soil pH measurement, a slurry of 1 part soil to 1 part water is recommended, allowing time for settling before taking readings.

Despite its advanced features, the GroLine pH/Temperature Tester remains user-friendly. The front panel features two buttons for power and calibration, with additional customisation options accessible via a third button in the battery compartment. Customisation includes temperature display in Celsius or Fahrenheit, selectable automatic shut-off times, and the choice between Hanna's Quick Cal pH/EC standard or traditional buffer values.

The electrode is equipped with a unique extractable cloth junction, essential for maintaining accurate readings by preventing clogging. This feature allows for periodic extraction of a small portion of the junction, renewing its effectiveness. The overall length of the junction is about 1", ensuring longevity and reliability.

Key Features:

Built-in temperature sensor for Automatic Temperature Compensated measurements
Renewable junction to clear clogging and ensure accurate readings
Stability indicator for determining reading stability
Automatic calibration to one or two points with a push of a button
Uses Hanna's Quick Cal pH/EC standard with a pH value of 6.86
Battery percentage level displayed at start-up
Low battery indicator displayed when less than 10% battery life remains