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For laboratory consumables or equipment, head over to our alternative website, Australian Scientific, where you can conveniently purchase these items alongside water quality products.
$485.00 ex GST
The Apera GroStar® GS2 is a premium soil pH tester designed for growers to perform professional pH testing directly in soil, coco coir, rockwool, and nutrient solutions. Its Swiss LabSen® Spear pH probe ensures accurate results with minimal maintenance, while the PTFE ring prevents clogging for extended probe life.
With a simple workflow, 2-point automatic calibration , and a clear 3-color backlit LCD , the GS2 is perfect for quick and reliable measurements in any environment. The TruRead mode enables multi-location testing with automatic averaging of results. The replaceable pH probe ensures cost efficiency over time.
Ideal for simplifying crop management and achieving consistent growth results.
Need calibration solution for your pocket meter? CLICK HERE to view our range
pH Range |
0.0 to 14.0 pH |
pH Resolution |
0.1 pH |
pH Accuracy |
±0.1 pH |
pH Calibration Points |
Automatic 1 to 3 points – (7/4/10) *pH 10.01 solution sold separately |
Temperature Compensation |
Auto Temperature Compensation |
Temp. Range |
0 to 50°C (32 to 122°F) |
Temp. Resolution |
0.1 °C |
Temp. Accuracy |
± 0.1 °C |
Unit |
pH, °C, °F |
Power Supply |
4-AAA alkaline batteries |
Backlight |
White(measurement); Green(calibration); Red(errors) |
Reading Hold |
Manual |
pH Probe |
LabSen® Spear Soil pH Probe |
Successful calibration indicators |
M (7.00 pH), L(4.00 pH), H(10.01 pH) |
Low battery reminder |
Yes, flashing battery icon |
Waterproof Rating |
IP67 |
Reading stabilization icon |
Yes, smiley face icon |
Warranty |
Two years for the instrument and 1 year for the probe from delivery |