Lab-grade pH/EC/TDS meter designed specifically to meet growers' needs and habits Measures pH, EC, 700ppm, 500ppm, and temperature with premium probe technologies, ensuring high accuracy and durability with minimal maintenance Grower-friendly calibration workflow on an HD backlit screen allows you to finish 2-point calibration within a minute Replaceable combo probe with double junction pH sensor and titanium EC sensor Electrode condition indicator and calibration reminder function help you perform proper maintenance in a breeze