Luster Leaf® Rapitest® Soil pH Meter Light Bulb it's a microbe that builds

it's a microbe that builds root mass and increases plant uptake of nutrients and water

the Sensi Professional Series delivers a steady stream of readily available nutrients to your plants

Calibration is simple with one push button on the meter and fresh Bluelab® Calibration Solutions

Get the color you want when it’s time to harvest

60% Relative Humidity)

Luster Leaf® Rapitest® Soil pH Meter Light Bulb it's a microbe that buildsSimple readout, ideal for outdoors or indoors. Instantly tell when plants need watering Measures water at the root level Includes watering needs for over 150 plants Product specifically designed to be used only in soil No batteries required. NOTE: Refer installation manual before use