Bluelab Combo Meter 3-in-1 Air Purifier The strongest and best rooting

The strongest and best rooting gel on the market

Wetting agent ensures nutrients are immediately plant available

Dry Erase board - for easy organization and note taking

Diameter is Ø 40mm

They are not buoyant

Bluelab Combo Meter 3-in-1 Air Purifier The strongest and best rootingProduct Features Benefits Measures pH, conductivity and temperature on the go Brilliantly simple design thats easy to use, clean and calibrate Backlit display to capture every measurement with ease Includes a pH Probe and Conductivity Probe to cover all your nutrient uptake fundamentals 2 metre cable for measuring in hard to reach locations Customize scales to your preference conductivity in EC, CF, PPM 500 (TDS) or PPM 700; temperature in C or F The