HM Digital Handheld TDS Tester Model TDS-3 Canna The 67 g pack is

The 67 g pack is a flat kraft envelope rather than a puck or a jar insert

with a dimmable range from 60–350W

While an understanding of all three metrics is ideal

The single-ended design fits standard SE CMH fixtures and ballasts

just rehydrate them with water and they'll be good to go

HM Digital Handheld TDS Tester Model TDS-3 Canna The 67 g pack isIdeal 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