pH Meters

Bluelab Multimedia pH Meter - 6.5ft Probe Cable - For Soil, Coco, Rockwool, and Solution

In Stock: 79

$137.01 $209.00 -34%

Bluelab pH Pen Meter - Measures pH and Temperature

In Stock: 260

$99.00

Bluelab Combo Meter pH Replacement Probe

In Stock: 358

$90.00

GroStar GS4 5-in-1 Combo Pen

In Stock: 100

$148.20 $178.99 -17%

GroStar GS2 Soil pH Pen

In Stock: 124

$212.78 $256.99 -17%

Bluelab pH Probe Inline - 3/4in NPT - For Guardian Monitor Connect Inline

In Stock: 38

$209.00

Bluelab Leap pH Probe - for Combo Meter - Combo Meter Plus - and Multimedia pH Meter

In Stock: 116

$145.00

GroStar GS2-E Replacement Electrode

In Stock: 97

$150.68 $181.99 -17%

GroStar GS4-E Replacement Electrode

In Stock: 73

$66.23 $79.99 -17%