Myron L Ultrapen PT2 pH & Temperature Pen Active Aqua Hydrogen peroxide is one of

Hydrogen peroxide is one of the simple products out there that is essential in every hydroponics garden

It is an aroma and structure supplement

Growth cycles shortened

One card ships inside each wrapper

Active Aqua's chillers are environmentally friendly (they use R410a refrigerant) and are ideal for keeping the nutrient solution in your reservoir at the perfect temperature

Myron L Ultrapen PT2 pH & Temperature Pen Active Aqua Hydrogen peroxide is one ofThe Myron L Ultrapen PT2 pH & Temperature Pen is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include automatic temperature compensation; highly stable microprocessor based circuitry; user intuitive design; and waterproof housing. A true one handed instrument, the PT2 is easy to calibrate and easy to use. To take a measurement, you simply push a button then dip the pen in solution.