The GroStar GS4 Premium Combination Meter is specially developed for measuring pH, EC (conductivity), and temperature, making it an essential tool for hydroponics and gardening. Its rugged design ensures durability and reliability, while its high-precision components and ease of use help increase the efficiency of plant growth. Whether for professional use or for the hobbyist gardener, the GS4 provides accurate readings for all your plant care needs.

The GS4 is a 5-in-1 meter, capable of measuring pH, conductivity (EC and 500ppm/700ppm), and temperature simultaneously. It is compatible with all GroStar replacement electrodes, including pH, pH-soil measurement, EC, and the pH/EC combo electrodes. With its replaceable electrodes, you only need to replace the electrode when it stops working, not the entire meter. The meter features a large 3-color backlit screen for easy readability and is IP67 waterproof, ensuring durability even in outdoor environments.

Key Features:

✔ 5-in-1 Measurement – pH, EC (500ppm/700ppm), and temperature
✔ Electrode Compatibility – Works with all GroStar replacement electrodes: pH, pH-soil, EC, and pH/EC combo
✔ Premium Electrode Technology – Ensures high accuracy and durability with minimal maintenance
✔ Easy to Use – Quick calibration setting and intuitive operation
✔ Replaceable Electrode – Replace only the electrode when needed
✔ 3-Color Backlit Screen – Clear information display with white for measurements, green for calibration, red for error messages
✔ IP67 Waterproof Design – Durable and water-resistant for outdoor use
✔ Automatic Temperature Compensation – Ensures accurate readings in varying conditions
✔ Powered by AAA Batteries – Includes auto-off function to save power
✔ Warranty – 2 years on the meter, 1 year on the electrode

A complete set contains:

✔ GS4 pH/EC Pocket Meter
✔ Calibration Solutions (pH 7.00, pH 4.00, 50ml each)
✔ Calibration Solution (2.77 EC, 50ml)
✔ 3M KCl Storage Solution (10ml)
✔ Lanyard
✔ Manual