GroLine pH Dosing System

The GroLine pH Dosing System HI981412 by HANNA Instruments easily assimilates into a nutrient/fertilizer system for soil and hydroponics. Simply insert the probe and injection valve in-line with the re-circulation pump and provide the chemical to be dosed. Maintaining the correct pH of plant soil or hydroponic nutrient solutions is an ongoing task. Macro and micro nutrients, as well as calcium and magnesium bloom boosters, require the correct pH for absorption into the plants root system.  Available in multiple configurations for easy integration into your setup. Programmable alarm system and multicolored LCD display. Perfect for small hydroponics systems. The powerful built-in peristaltic pump uses a stepper motor which does not have any gears or brushes providing for a long life with little maintenance. Automatic Proportional Pump Control:  The peristaltic dosing pump can be controlled by simple on/off or more advanced proportional control which helps prevents overshooti