HIGH TIMES 2019 STASH AWARDS
Aug 06, 2019
4 minutes
BY DANNY DANKO
BEST DIGITAL METER
HM DIGITAL’S HM-200
Prices vary
The nutrient reservoir is the lifeblood of the hydroponic cannabis garden, and monitoring the levels of plant food, temperature, and acidity or alkalinity of the liquid solution is essential for obtaining consistently high yields. The HM-200 monitor from HM Digital measures TDS (total dissolved solids) in PPM (parts per million), EC (electrical conductivity), pH (acidity or alkalinity) and temperature, all in one sleek but versatile portable handheld unit. All levels are displayed on an easy-to-read LCD screen, and the monitor arrives calibrated and ready to use.
BEST FOLIAR CALCIUM SUPPLEMENT
XTREME GARDENING’S CALCARB
$33.99, 6 ounces
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