HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Controller 3 3/4" barbed elbows

3 3/4" barbed elbows

increases root access to nutrients

digital thermometers can measure the temperature of many substances from air to liquids to surfaces—all electronically

- Helps limit plastic waste

Hygrozyme provides a cleaner root zone by accelerating the breakdown of dead root matter

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Controller 3 3/4" barbed elbowsDescription COM 300L: Waterproof Professional Series pH EC TDS Temp Meter The COM 300L is a professional grade level pH EC TDS Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical