HM Digital Pro Series Pen style pH/Temp meter spl_ps CMH technology incorporates spectral wavelengths

CMH technology incorporates spectral wavelengths not found inside the PAR range

giving you plenty of space to work with your plants and lighting system

the fans contain long life dual ball bearings and can be run continuously for 67

Display: 3-digit LCD

The Active Aqua Dual Diaphragm Air Pump is a reliable and efficient solution for providing essential aeration to your hydroponic garden

HM Digital Pro Series Pen style pH/Temp meter spl_ps CMH technology incorporates spectral wavelengthsDescription PH 200: Waterproof Professional Series pH Temp Meter The PH 200 is a professional grade pH Temp meter ideal for all pH testing water. With its advanced microprocessor it provides highly accurate dependable readings in such applications as hydroponics, purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment,