HM Digital Handheld TDS Tester Model TDS-3 Advanced Nutrients The R-Spec variant builds on

The R-Spec variant builds on the legacy of the HLG 550 V2 R-Spec with newer Samsung diodes and an optimized spectral blend for flowering applications

Specification Value Guaranteed Analysis 0-0-1 (1% Soluble Potash

or benchtop use

You give up a little growing floor for it

HM Digital Handheld TDS Tester Model TDS-3 Advanced Nutrients The R-Spec variant builds onIdeal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto off function: the meter shuts off automatically after 10 minutes of non use to conserve batteries. Measurement Range: 0 9990 ppm. Built in digital thermometer Display: large and easy to read LCD screen. Factory Calibrated: our meters