HMD PH/TEMP PEN PH-200 LEGACY MANUFACTURING For best results use with

For best results use with Ionic® Boost

Special synthetic rubber diaphragm provides consistent airflow output which can be easily adjusted with the pressure dial

Oversized to fit easily onto connections

The amount of base nutrients may need to be reduced by as much as 50% when using M

STANDARD USE Start with 2 ml per gallon of nutrient solution

HMD PH/TEMP PEN PH-200 LEGACY MANUFACTURING For best results use withPH 200: FEATURES Measures pH and temperature Auto ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried up Waterproof housing Simultaneous temperature display Measurement Range: 0 14 pH Digital Calibration (push button)Auto off function, data hold function and low battery indicatorDisplay: large and easy to read LCD screen includes simultaneous