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Meters & Controllers

Bluelab pH Pen Meter - Measures pH and Temperature
In Stock: 215
$99.00
Bluelab Probe Care Kit - for Bluelab pH Probes
In Stock: 23
$25.00
Bluelab Probe Care Kit - for Bluelab Conductivity Probes
In Stock: 10
$19.00
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)
Milwaukee Instruments MA871 Digital Brix Refractometer, Range 0-85%
Out of stock
$142.16 $199.00 -29%
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: 320
$90.00
Bluelab Commercial Truncheon Nutrient Meter - Measures EC, CF, and PPM
In Stock: 21
$105.00
P3 International Save a Drop Water Meter
In Stock: 2052
$16.76 $19.95 -16%
Milwaukee Instruments pH600 Digital pH Pen
Out of stock
$34.00
Bluelab Conductivity Pen Meter - Measures Conductivity and Temperature
In Stock: 75
$99.00
Active Air 3-Way Meter
In Stock: 708
$9.23 $13.09 -29%
GroStar pH Probe Maintenance Kit
In Stock: 75
$20.15 $23.99 -16%
Bluelab Combo Meter Plus - Measures pH, Conductivity, and Temperature
In Stock: 13
$399.00
Hydrofarm Active Air 2-Way Meter - Moisture and pH
In Stock: 10
$9.81 $13.99 -30%
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