Myron L Ultrapen PT1 (EC)/TDS/Salinity Pen TrolMaster At about 10

At about 10

Oscillation + Tilt: Sweep the room or lock and aim the head

Our black plastic trays are 6" deep with a virgin U

Heavy 16 Roots root growth enhancer for a stronger rhizosphere

Myron L Ultrapen PT1 (EC)/TDS/Salinity Pen TrolMaster At about 10The Myron L Ultrapen PT1 (EC) TDS Salinity Pen is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that model the characteristics of the most commonly encountered types of water; proprietary temperature compensation and TDS conversion algorithms; highly stable microprocessor based circuitry; user intuitive design; and