HM Digital Pro Series Pen style pH/Temp meter spl_ps which means it is stable

which means it is stable even under fire conditions

always maintain proper conductivity (CF) and pH levels for your crop

during early bud formation to fuel flowering

The air conditioner filter media will not support the growth of mold or bacteria on the air filter itself

HM Digital Pro Series Pen style pH/Temp meter spl_ps which means it is stableDescription 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,