Bluelab Guardian Monitor Inline Wi-fi Zip-Zag made for use during the

made for use during the vegetative stage

Don't mix both parts together

helping your plants produce their own sustenance

Can be used as a foliar or root feed

It's reusable

Bluelab Guardian Monitor Inline Wi-fi Zip-Zag made for use during theOverview The Guardian Monitor Wi Fi with Inline Probes provides continuous monitoring of pH, conductivity (EC), and temperature directly in your nutrient system, giving you accurate, real time readings without the need for hand testing. Designed for inline installation, the probes measure your solution as it flows through your irrigation or reservoir setup, ensuring you always know exactly what your plants are receiving. With built in Wi Fi