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Meters & Controllers

Plastair Wrox Color Change Moisture Indicator | 3pc
Out of stock
$6.82 $7.79 -12%
Hydrofarm Active Air 3-Way Meter
In Stock: 51
$10.71 $14.99 -29%
GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
In Stock: 113
$12.41 $14.99 -17%
1" Digital Flow Meter
In Stock: 5
$95.84 $103.95 -8%
HM Digital PH-STOR pH Electrode Storage Solution
In Stock: 73
$7.02 $8.49 -17%
Dilution Solutions PH Storage Solution | 60cc
Out of stock
$7.44 $7.95 -6%
Hanna General-Purpose Cleaning Solution | 230ml
In Stock: 4
$23.60 $26.59 -11%
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$69.85 $74.95 -7%
Hanna 7.01 pH Buffer Solution | 500ml
In Stock: 13
$26.99 $27.99 -4%
Hanna 4.01 pH Buffer Solution | 500ml
In Stock: 15
$26.99 $27.99 -4%
1.5" Digital Flow Meter
In Stock: 11
$106.64 $115.50 -8%
1.25" Digital Flow Meter
In Stock: 10
$101.24 $110.25 -8%
Aqua-X Plus Controller with AMP-3 Sensor Board,Free App
In Stock: 7
$1,259.54
Aqua-X Pro Controller with AMP-3 Sensor Board,Free App
In Stock: 3
$2,500.19 $2,623.95 -5%
Aqua-X Controller with Water Detector set, Free App
In Stock: 41
$330.74 $348.60 -5%
2-in-1 EC + Temp Sensor for Reservoir
In Stock: 5
$91.79 $100.28 -8%
Water Content Sensor with Cable Set
In Stock: 18
$218.69 $241.50 -9%
Inline pH Sensor, Heavy Duty
In Stock: 6
$178.19 $197.40 -10%
Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible
In Stock: 9
$199.79 $219.45 -9%
pH Sensor for Reservoir
In Stock: 6
$79.64 $88.20 -10%
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