HM Digital HMCC-1 Controller Cover

PPH-1000: Single Line pH and Temp Controller This new offering from HM Digital gives the user a single-line pH controller ideal for any industrial or commercial systems needing to control pH levels...

HM Digital SP-1/SP-1-PSC Replacement Sensor Used with HM Digital Controllers PSC-150, PSC-154 and CIC-152 to inc

HM Digital COM-300: Waterproof Professional Series pH/EC/TDS/Temp Meter The COM-300 is a professional grade level pH/EC/TDS/Temp meter ideal for all water quality testing, hydroponics, water