HM Digital Hydromaster Portable - pH/TDS/EC/Temp b-light Features 2 growing rooms to

Features 2 growing rooms to offer continuous growing

Includes Mesh screen only

GXM150 = Ultra High Rejection membrane for the purest of water

The new Elite stand-up trimmer is built to last

HM Digital Hydromaster Portable - pH/TDS/EC/Temp b-light Features 2 growing rooms toHM 200: Portable pH EC TDS Temp Monitor The HM 200 is a versatile portable pH EC TDS Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS),