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pH Meters

Bluelab pH Pen Meter - pH and Temperature
Out of stock
$99.00
Bluelab Multimedia pH Meter for Soil, Coco, Rockwool, and Solution - 6.5-ft Probe Cable
In Stock: 31
$143.71 $209.00 -31%
Luster Leaf Rapitest Digital Soil pH Meter - 3.5 to 9.0 pH Range
In Stock: 275
$255.48 / $21.29 per unit
(minimum purchase of 12)
GroStar GS4 5-in-1 Digital pH/EC/TDS/Temperature Meter
In Stock: 72
$141.25 $178.99 -21%
Sunpack 2-Function Plant Sensor Meter for Soil Moisture and pH
In Stock: 10
$151.40 / $15.14 per unit
(minimum purchase of 10)
GroStar GS2 Soil pH/Temperature Meter
In Stock: 116
$202.81 $256.99 -21%
Bluelab pH Probe Inline - 3/4-in NPT - For Guardian Monitor Connect Inline
Out of stock
$203.47 $209.00 -3%
Bluelab Soil pH Pen for Soil, Coco Coir, and Potting Mixes - Battery Included
Out of stock
$193.73 $199.00 -3%
Bluelab Replacement pH Probe for Combo Meter
In Stock: 3
$90.00
Bluelab Combo Meter Plus - pH, Conductivity, and Temperature
In Stock: 9
$371.66 $399.00 -7%
Milwaukee Instruments pH600 Digital pH Pen
Out of stock
$34.00
Hydrofarm Active Air MGMP1 2-Way Moisture and pH Meter
In Stock: 10
$11.63 $13.99 -17%
GroStar pH Probe Maintenance Kit
In Stock: 74
$23.17 $23.99 -3%
Bluelab Leap pH Probe for Combo Meter, Combo Meter Plus, and Multimedia pH Meter
In Stock: 34
$141.16 $145.00 -3%
Luster Leaf Rapitest Light and Moisture Meter - Dual Tester
In Stock: 68
$163.20 / $27.20 per unit
(minimum purchase of 6)
Active Air 2-Way Moisture/pH Meter
In Stock: 427
$9.83 $11.84 -17%
Bluelab Combo Meter - pH, Conductivity, and Temperature - 6.5-ft Probe Cable
Out of stock
$330.02 $339.00 -3%
GroStar GS1 Digital pH/Temperature Meter
In Stock: 153
$100.93 $115.99 -13%
Hanna Instruments HI7031L Standard Conductivity Calibration Solution - 500 mL - 1413 µS/cm - NIST Traceable
In Stock: 7
$29.69
Milwaukee Instruments pH600 pH Tester with 1-Point Manual Calibration
Out of stock
$24.67 $35.00 -30%
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