Bluelab Guardian Monitor (Conductivity / Temperature / pH)
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 system kicks into action to alert you to the situation - allowing you to solve minor issues before they become major issues!