Hanna Primo TDS Tester ventilation During the seedling stage

During the seedling stage

Fits Metal Halide ballast

GROW GREEN lamps emit light in the right spectrum

Use on established plants as a growth stimulant and ailing plants as a vitality booster

reduced heat load

Hanna Primo TDS Tester ventilation During the seedling stagePrimo testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. Each tester is ideally suited for the rigorous demands of water quality professionals. Many professionals use the cabled version of the Primo when demonstrating the before and after results of conditioning and filtration systems. Temperature is compensated automatically to ensure readings are consistent to the standard or