80 HIGH TIMES I OCTOBER 2019
2019 STASH AWARDS
BEST DIGITAL METER
HM DIGITAL’S HM-200
Prices vary
hmdigital.com
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 conduc-
tivity), 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 WATER FILTRATION
HYDROLOGIC’S HYDROID
$5,495
hydrologicsystems.com
Commercial grow operations
require purification systems
that can keep up with a high
demand for clean water. The
Hydroid reverse-osmosis (RO)
unit from Hydrologic is capable
of producing 3,000 gallons per
day of pure or 4,500 gallons
per day of blended water and
comes on casters ready to roll.
The relatively aff ordable price
includes everything you need to
get started with simple plug-and-
play technology. This small but
mighty workhorse is eff icient
as well, producing two parts of
usable product to one part of
wastewater.BEST FOLIAR CALCIUM SUPPLEMENT
XTREME GARDENING’S CALCARB
$33.99, 6 ounces
xtreme-gardening.com
A calcium deficiency causes leaf crin-
kling and brown rust spots that eventu-
ally result in stunted growth and dead
plants, but calcium also moves slowly
through a plant. That’s why we love the
new CalCarb from Xtreme Gardening, a
foliar booster that allows growers to add
readily available calcium and carbon di-
oxide directly to leaf surfaces for instant
absorption. Simply dilute and spray onto
the undersides of leaves once a week to
strengthen the walls of plant cells and
protect leaves from powdery mildew.