Bluelab Guardian Monitor (Conductivity / Temperature / pH) Media Particularly well suited to spaces

Particularly well suited to spaces where simplicity

You add it to your existing feed schedule

packed with worm castings

so if the worst happens

Bluelab Guardian Monitor (Conductivity / Temperature / pH) Media Particularly well suited to spacesBluelab Guardian Monitor (Conductivity Temperature pH) Complete Feeding, No Guesswork When growing hydroponically, it's essential to carefully monitor reservoirs to ensure that nutrients of the right strength, temperature and pH are delivered to your plants. The Bluelab Guardian is an all in one solution to monitoring every essential parameter. Should levels ever drop below, or rise above, pre determined values, then the easily programmed visual alarm