Hanna Primo TDS Tester lighting-&-electrical-components Set the desired shutdown temperature

Set the desired shutdown temperature and the off time before bringing the lights back on

Phat filters remove the strongest and most potent plant odors

and Daylight BLUE

Chain hang or wall mount

9 inches to 22

Hanna Primo TDS Tester lighting-&-electrical-components Set the desired shutdown temperaturePrimo 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