Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization fluorescent-lighting Double Ag/AgCl reference for less
Yard notes & kiln story
Description
Hanna Industrial Grade pH TDS Controller w Proportional Control of Fertilization fluorescent lighting Double Ag AgCl reference for less Double Ag AgCl reference for less noise (unwanted voltages) than gold or silver electrodes and commercial booster pump designed for continuous use