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Hydrofarm
With a strong portfolio of manufactured and distributed brands, we are one of the leading companies in the global Controlled Environment...
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1 year
Shoemakersville, US
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Meters & Controllers

GroStar GS2-E Replacement Soil Spear pH Electrode for GS2 Soil pH Meter
In Stock: 97
$143.62 $181.99 -21%
Apera Instruments GroStar pH 4/7/10 Calibration Solution Kit - 8 Oz Each
In Stock: 14
$24.30 $28.99 -16%
GroStar GS1-E Replacement pH Electrode for GS1 pH Meter
In Stock: 95
$42.75 $50.99 -16%
HM Digital 1000 ppm TDS Calibration Solution - 3 Oz (90 mL)
In Stock: 31
$10.99
HM Digital COM-80 Waterproof EC/TDS/Temp Hydro Tester
In Stock: 16
$48.28 $52.99 -9%
Apera Instruments GroStar EC 2.77 Calibration Solution Kit - 8 Oz Each
In Stock: 106
$14.47 $14.99 -3%
Apera Instruments GroStar GS3-E Replacement EC Electrode for GS3 Pen
In Stock: 98
$45.27 $53.99 -16%
TrolMaster Digital Flow Meter DFM-3 - 1.5-in
In Stock: 5
$107.97 $115.50 -7%
TrolMaster Digital Flow Meter DFM-2 - 1.25-in
In Stock: 7
$102.59 $110.25 -7%
HM Digital PH-STOR pH Electrode Storage Solution
Out of stock
$8.88 $8.99 -1%
HM Digital Replacement EC/TDS Probe for Hydromaster
Out of stock
$48.85 $57.99 -16%
TrolMaster PPH-2 Heavy-Duty Intank pH Sensor
In Stock: 12
$171.40 $197.40 -13%
TrolMaster WCS-1 Water Content Sensor with Cable Set
In Stock: 48
$210.28 $241.50 -13%
TrolMaster Aqua-X Plus NFS-3 Irrigation Control System with AMP-3 Sensor Board
In Stock: 2
$1,146.54 $1,258.95 -9%
TrolMaster Aqua-X NFS-1 Irrigation Control System with Water Detector Set
Out of stock
$316.39 $348.60 -9%
TrolMaster PPH-3 Heavy-Duty Inline Nutrient pH Sensor
In Stock: 9
$191.99 $219.45 -13%
TrolMaster PCT-1 EC and Temperature Sensor for Reservoir
In Stock: 3
$93.06 $100.28 -7%
TrolMaster Aqua-X Pro NFS-2 Irrigation Control System with AMP-3 Sensor Board
In Stock: 6
$2,492.75 $2,623.95 -5%
TrolMaster PPH-1 pH Sensor for Reservoir
In Stock: 24
$80.92 $88.20 -8%
TrolMaster PCT-2 Heavy-Duty Intank EC and Temperature Sensor
In Stock: 7
$191.99 $219.45 -13%
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