The Hanna GroLine pH Tester has advanced features for measuring the pH in hydroponic nutrient solutions.

The tester (HI-98115) is a very simple meter to operate with all functions including turning on/off and calibration performed with a single button. It features a replaceable HI-1271 pH electrode that you can change when needed without having to buy a new meter.

This Hanna GroLine pH tester has many advanced features typical of more expensive portable instruments. These features include automatic calibration to one or two points, automatic buffer recognition, calibrated buffer tags, stability indicator, low battery indicator, and selectable automatic shut off.

Hanna GroLine pH Tester Key Features:

• Large LCD – Enhanced LCD that displays reading, stability indicator, low battery indicator and calibration tags.
• Replaceable pH Electrode – The HI-1271 supplied gel filled pH electrode is 103 mm long and tapers to an 8 mm diameter at the sensing end. This narrow electrode easily fits into test tubes, vials, and other containers with small opening.
• Automatic Calibration – you can calibrated the HI-98115 automatically to one or two points. This automatically recognises the calibration buffers and, after calibration, the display with show the buffer values as a tag.
• Stability Indicator – the LCD displays an hourglass indicator until it obtains a stable reading. Then the indicator disappears and you can record a reading.
• Automatic Shut-Off – The meter can automatically turn off after 8 minutes or 60 minutes to conserve battery life if you leave the meter on. You can also disable the auto-off feature.
• Long Battery Life – The HI-98115 has an exceptional long battery life of approximately 1000 hours. When the battery power is running low, the LCD displays a low battery indicator.
• Plastic Carrying Case – The HI-98115 comes complete with meter, probe, calibration solutions and cleaning solutions packaged in a durable plastic carrying case.