Apera Instruments GroStar GS4-E Replacement pH/EC Combo Electrode Aeroponic Systems Please Read Before Using:

Please Read Before Using:

Adjustable speed control allows you to adjust your load speeds to match your ideal output in lbs per hr

Wait 5 to 10 minutes

more is not always better

JSFC2T - Up to 10 fixtures

Apera Instruments GroStar GS4-E Replacement pH/EC Combo Electrode Aeroponic Systems Please Read Before Using:GroStar GS4 E replacement pH EC combo electrode Measures pH, conductivity (EC and PPM) and temperature Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Double junction structure uses blue gel electrolyte without the air bubble 1 year warranty