GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen harvest-solutions Electrode: Replaceable glass sensor and

Electrode: Replaceable glass sensor and reference tube electrodes

Move your lights back and forth across your growing area with a light mover

The Hydro-X system can control most grow lights brands

In ebb and flow tables

making it fundamental to use coconut fiber

GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen harvest-solutions Electrode: Replaceable glass sensor andAI21040 GroStar GS4 pH EC 500ppm 700ppm & Temp (5 in 1) Combo Pen Lab grade instruments designed specifically for growers! Includes: pH 7 & pH 4 calibration solution (50ml bottle each), 2. 77 EC (50ml bottle) and KCL storage solution (10ml bottle), lanyard and user manual Measures pH, conductivity (EC and 500ppm 700ppm) and temperature (5 in 1) Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Easy