HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter books-&-videos It is estimated that more

It is estimated that more than 80% of homes across the country are affected by hard water

PPF (Photosynthetic Photon Flux): 3451

(diameter * height) 4

Made in the USA with guaranteed durability

HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter books-&-videos It is estimated that moreDescription HM 500 HydroMaster: EC TDS, pH, Temp Continuous Monitor The HM 500 is the most versatile continuous monitor indicating EC TDS, pH, and Temp providing accurate, stable readings the user can rely on. With its rechargeable battery this unit is portable or can be wall mounted.. To make is even more user friendly, it comes equipped with touch screen, high and low alarm set points, and recorded readings. It is ideal for hydroponics and other