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pH Meters

GroStar pH Probe Maintanence Kit
In Stock: 76
$20.00 $23.99 -17%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
In Stock: 64
$149.27 $178.99 -17%
GroStar GS2 Soil pH Pen
In Stock: 114
$214.32 $256.99 -17%
GroStar GS1 pH Pen
In Stock: 259
$99.72 $115.99 -14%
GroStar GS4-E replacement pH/EC combo electrode
In Stock: 82
$66.71 $79.99 -17%
GroStar GS2-E replacement Soil Spear pH electrode
In Stock: 89
$151.77 $181.99 -17%
GroStar GS1-E replacement pH electrode
In Stock: 78
$42.52 $50.99 -17%
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