Hanna Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

‌ All measurements in a single, hassle-free tester. Quick Cal solutions to calibrate pH and conductivity all at once with a single solution. Perfect for hydroponics, greenhouse, and agriculture use. All measurements in a single, hassle-free tester. Quick Cal solutions to calibrate pH and conductivity all at once with a single solution. Perfect for hydroponics, greenhouse, and agriculture use.