Holland Forge Wholesale Hydroponics Supplies

The best selling hydroponics CF Meter in the world. Why do growers prefer the Bluelab Truncheon? It's easy to use, easy to read, extremely accurate and best of all it's reliable.

The Bluelab Guardian Monitor constantly measures conductivity, pH and temperature levels, and displays it in an easy to read LED.

The Bluelab Combo Meter is a portable all-in-one nutrient, pH, and temperature meter which can be used anytime and anywhere.

Replacement probe for Guardian Monitor and Combo Meter