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Meters & Controllers

Hanna pH, EC, and TDS Combo Tester - High Range - Waterproof - Floating
In Stock: 1
$303.74 $326.24 -7%
Dilution Solutions pH Calibration and Storage Solution - 20pcs - Individual Packets
In Stock: 89
$23.27 $24.95 -7%
GroStar EC 2.77 Calibration Kit
In Stock: 114
$12.59 $14.99 -16%
Bluelab Probe Care Kit - for Bluelab pH and Conductivity Probes
In Stock: 60
$34.78 $45.51 -24%
GroStar GS3-E Replacement Electrode
In Stock: 98
$45.35 $53.99 -16%
1.5" Digital Flow Meter
In Stock: 10
$106.64 $115.50 -8%
Hanna pH 7.0 Buffer Calibration Solution - 500ml - NIST Traceable
In Stock: 2
$29.69 $31.89 -7%
Hanna Electrode Storage Solution - HI 70300 - For pH Electrode Preservation
In Stock: 3
$29.69 $34.99 -15%
HM Digital PH-STOR pH Electrode Storage Solution
In Stock: 45
$7.48 $8.99 -17%
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$48.64 $57.99 -16%
1.25" Digital Flow Meter
In Stock: 9
$101.24 $110.25 -8%
Hanna pH 4.0 Buffer Calibration Solution - 500ml - NIST Traceable
In Stock: 2
$29.69 $31.89 -7%
Hanna General Purpose Electrode Cleaning Solution - HI 7061M - 230ml
In Stock: 3
$25.64 $27.54 -7%
Inline pH Sensor, Heavy Duty
In Stock: 14
$178.19 $197.40 -10%
Water Content Sensor with Cable Set
In Stock: 48
$218.69 $241.50 -9%
Plastair Wrox Color Change Moisture Indicator | 3pc
In Stock: 12
$87.36 / $7.28 per unit
(minimum purchase of 12)
Aqua-X Controller with Water Detector set, Free App
In Stock: 4
$330.74 $348.60 -5%
Aqua-X Plus Controller with AMP-3 Sensor Board,Free App
In Stock: 5
$1,258.95
Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible
In Stock: 10
$199.79 $219.45 -9%
2-in-1 EC + Temp Sensor for Reservoir
Out of stock
$91.79 $100.28 -8%
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