Hanna GroLine pH Dosing System (HI981412)

Automated pH control for hydroponic and fertigation systems. The GroLine HI981412 is a wall-mounted controller with a built-in peristaltic dosing pump: it reads pH continuously and doses automatically to hold your set point, so reservoir pH stops drifting between manual checks.

• Controller with HI10063 amplified pH/temperature probe (PVDF body, 1/2" thread, Quick Connect DIN)
• pH 0.00-14.00, 0.01 resolution, +/-0.10 pH accuracy, automatic temperature compensation
• On/Off or Proportional dosing control - set point 4.00-10.00 pH; selectable acid (pH Down) or base (pH Up) dosing
• Peristaltic pump doses 0.5-3.5 L/h; brushless stepper motor; manual prime control
• High/low alarms, overtime overdose protection, color-coded LCD (green = normal, red = alarm)
• IP65 wall-mount casing, alarm relay output, input for a level controller or flow switch
• In the box (base configuration): controller, HI10063 probe, pH 4.01 and 7.01 buffer sachets (20 mL x 3 each), power connection cable, instruction manual
• In-Line Mounting Kit adds: injector, pipe saddles, aspiration filter, valves, 5 m aspiration and dispensing tubing. Panel-Mounted Flow Cell adds: flow cell on mounting panel, injector, saddles, filter, valves, 5 m aspiration and 15 m dispensing tubing

Please note: Hanna Instruments items may add 1-2 extra business days of processing time before shipping.