PEN BLUE LAB MEASURER

It is an essential tool for hydroponic cultivation. It helps determine the strength of the solution before feeding the plants and while they are growing. To take readings, simply insert the probe head into the solution for 1-2 minutes until it reaches the same temperature as the solution.

Remove from the solution and reinsert as indicated by the LEDs. Rinse the probe under running water and clean it once a week to ensure calibration and accuracy. It is also an ideal tool for agitating nutrients in the solution.

Features:

• EC (0.2 - 3.6), CF (2 - 36), and ppm scale (TDS scale and 700)
• Fully waterproof
• No calibration required
• Auto connection and disconnection function
• No external buttons or switches
• Minimum battery life: 1 year