Categories
- Organic Gardening+
- Natural Pest Control+
- Growing Indoorsโ
- Healthy Living+

TDS Testers
Knowing the dissolved solids level of your hydroponic solution is critical when adding supplements and maintaining optimum levels of nutrients. Aย professional quality TDS meter will give you accurate information on your solution’s total dissolved solidsย orย electricalย conductivity (EC). Want the fastest, most abundant growth possible? Get reading!
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Combo Meter
$309.95 -
HM Digital (TDS-3)
$36.95 -
Primo Tester
$57.95 -
PPM Pen
$94.95 -
Guardian Monitor
$394.95 -
Truncheon
$144.95 -
Combo (HI991404)
$259.95 -
Gro’Chek EC (HI983302N)
$119.95 -
Continuous Indicator (HI981404N)
$224.95 -
Gro’Chek TDS (HI983301N)
$119.95 -
DiST5 (HI98311)
$140.95 -
Portable (HI9813-6N)
$274.95
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