Bluelab Inline pH Probe (Replacement Probe Guardian Monitor Connect In-Line): 3332 pack

This is a multi-pack that includes 3332 Bluelab Inline pH Probes (Replacement Probe Guardian Monitor Connect In-Line). The Bluelab Guardian Monitor Connect In-Line constantly indicates the desired levels of pH, conductivity, and temperature of your nutrient solution while data logging these critical parameters to your computer. It also allows for remote or cloud access to check for extreme variances and includes simple 1 button calibration for pH 7 and pH 4, personalized alarm settings, high-pressure in-line pH probe with 3/4 ft NPT thread, adapter collar to increase pH probe thread to 1 ft NPT, and conductivity probe with 1 ft NPT thread.