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pH Meters

Bluelab pH Pen Meter - Measures pH and Temperature
In Stock: 210
$99.00
Luster Leaf Rapitest Digital Soil pH Meter - 3.5 to 9.0 pH Range
In Stock: 347
$232.20 / $19.35 per unit
(minimum purchase of 12)
Bluelab Multimedia pH Meter - 6.5ft Probe Cable - For Soil, Coco, Rockwool, and Solution
In Stock: 77
$138.99 $209.00 -33%
GroStar GS4 5-in-1 Combo Pen
In Stock: 96
$150.35 $178.99 -16%
Sunpack 2-Function Plant Sensor Meter - Soil Moisture and pH
In Stock: 20
$131.50 / $13.15 per unit
(minimum purchase of 10)
Bluelab Soil pH Pen - Direct Measurement in Soil, Coco Coir, and Potting Mixes
Out of stock
$200.35
Bluelab pH Probe Inline - 3/4in NPT - For Guardian Monitor Connect Inline
In Stock: 28
$209.00
GroStar GS2 Soil pH Pen
In Stock: 120
$215.87 $256.99 -16%
Bluelab Combo Meter pH Replacement Probe
In Stock: 317
$90.00
Milwaukee Instruments pH600 Digital pH Pen
Out of stock
$34.00
Bluelab Combo Meter Plus - Measures pH, Conductivity, and Temperature
In Stock: 13
$399.00
GroStar pH Probe Maintenance Kit
In Stock: 75
$20.15 $23.99 -16%
Hydrofarm Active Air 2-Way Meter - Moisture and pH
In Stock: 10
$9.81 $13.99 -30%
Bluelab Leap pH Probe - for Combo Meter - Combo Meter Plus - and Multimedia pH Meter
In Stock: 114
$145.00
Luster Leaf Rapitest Light and Moisture Meter - Dual Tester
In Stock: 32
$160.20 / $26.70 per unit
(minimum purchase of 6)
Active Air 2-Way Moisture/pH Meter
In Stock: 499
$8.29 $11.84 -30%
Bluelab Combo Meter - Measures pH, Conductivity, and Temperature - 6.5ft Probe Cable
In Stock: 70
$339.00
GroStar GS1 pH Pen
In Stock: 169
$98.27 $115.99 -15%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
Out of stock
$23.86 $35.00 -32%
Hanna Standard Conductivity Solution - 500ml - 1413 µS/cm - NIST Traceable
In Stock: 8
$29.69 $31.89 -7%
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