PH and PPM Pens

Bluelab pH Pen
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$116.00
$69.99

Bluelab pH Pen - NEW-OLD STOCK

Bluelab

  Bluelab pH Pen - NEW-OLD STOCK Product Features / Benefits Fully waterproof - not just water resistant Simple two-point calibration pro...

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$116.00
$69.99
Save 40%
Bluelab Conductivity Pen (PPM Pen)
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$97.00
$69.99

Bluelab Conductivity Pen (PPM Pen) - NEW-OLD STOCK

Bluelab

Bluelab Conductivity Pen - NEW-OLD STOCK   Product Features / Benefits Fully waterproof, not just water-resistant Selectable measurement un...

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$97.00
$69.99
Save 28%
Bluelab Soil pH Pen
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$191.00
$149.95

Bluelab Soil pH Pen

Bluelab

  Bluelab Soil pH Pen Product Features / Benefits Effective in most growing media and in water/solution Fully waterproof - not just w...

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$191.00
$149.95
Save 21%

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