Hanna Instruments GroLine pH Tester

Compact digital pH tester designed for quick and accurate measurement of nutrient solutions in hydroponic and plant science applications.

Designed for hydroponics and plant nutrient solution testing
Digital readout for fast, accurate pH measurement
Compact, waterproof housing for durability
Automatic temperature compensation for improved accuracy
Replaceable electrode extends usability
Supports plant systems and solution chemistry studies (NGSS: MS-LS1, HS-LS2)

The GroLine pH Tester is a user-friendly tool for measuring the pH of nutrient solutions in hydroponic, greenhouse, or classroom plant studies. The compact, waterproof design is well suited for repeated use in lab or growing environments. With automatic temperature compensation and a digital display, students can quickly obtain reliable measurements while investigating how pH influences plant health and nutrient availability. This tester supports hands-on learning in plant biology and ecosystem interactions, helping students connect chemical properties of solutions to biological outcomes in NGSS aligned investigations.