Bluelab Conductivity (EC or PPM) Pen Seed Starting keep in mind to provide

keep in mind to provide sufficient means of drainage in your pots

PowerSun Electronic Ballast Fan-Cooled 1000W HPS / MH 120 / 240V

HAZARDS : Single use

Brilliantly simple design that's easy to use

Bluelab Conductivity (EC or PPM) Pen Seed Starting keep in mind to provideBluelab Conductivity (EC or PPM) Pen Success by simplicity! The Bluelab Conductivity Pen is an easy to use handheld meter that quickly and accurately measures if your crop is receiving the right amount of nutrients. Use to maximize plant health, prevent nutrient burn and ensure optimum plant yields. DIRECTIONS FOR USE: Step 1: Press power button and place probe in solution. Wait for reading to stabilize. Step 2: To hold reading press power button