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Meters & Controllers

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64
Hydro Systems E-Dos Electric Pump Flow Meter Kit | with Clamp on Fittings
Out of stock
$2,884.20
Save 7%
Aqua-X Pro Controller with AMP-3 Sensor Board,Free App
In stock
$2,444.63 $2,623.95 -7%
Save 2%
Aqua-X Plus Controller with AMP-3 Sensor Board,Free App
In stock
$1,231.55 $1,258.95 -2%
Bluelab Connect Pro Controller | Remote Monitoring of pH, EC and Temperature
Out of stock
$1,214.93
Bluelab Guardian Monitor In-Line Connect | 10 ft In-line Probe Cable
Out of stock
$546.24
Bluelab Connect pH Controller | for Bluelab Connect Devices
In stock
$519.96 $683.36 -24%
Bluelab pH Controller | 6.5ft Probe Cable - Dose pH Up or pH Down
In stock
$487.42 $640.60 -24%
Bluelab Guardian Monitor Connect | 6.5ft Probe Cable
Out of stock
$415.98
Bluelab Combo Meter Plus | Measures pH, Conductivity & Temperature
In stock
$346.50
Save 7%
Aqua-X Controller with Water Detector set, Free App
In stock
$323.39 $348.60 -7%
Save 18%
Active Aqua Grow Flow Ebb and Gro Controller Unit w/2 Pumps
In stock
$320.02 $389.33 -18%
Bluelab Pulse Multimedia EC & MC Meter | Measures EC, Moisture & Temperature
In stock
$303.09
Save 18%
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
In stock
$294.55 $359.00 -18%
Bluelab Combo Meter | 6.5ft Probe Cable
In stock
$294.40
Hanna pH, EC & TDS Tester | High Range
Out of stock
$255.30
Save 10%
Heavy Duty Nutrient EC+Temp Sensor drop-in/inline compatible
In stock
$216.47 $241.50 -10%
Save 11%
Water Content Sensor with Cable Set
In stock
$213.83 $241.50 -11%
Save 18%
GroStar GS2 Soil pH Pen
In stock
$211.24 $256.99 -18%
Save 11%
Inline EC+Temp Sensor, Heavy Duty
In stock
$195.35 $219.45 -11%
Save 11%
Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible
In stock
$195.35 $219.45 -11%
Save 6%
Milwaukee Instruments MA871 Digital Brix Refractometer, Range 0-85%
In stock
$186.73 $199.00 -6%
Bluelab Soil pH Pen
In stock
$181.50
Bluelab pH Probe Inline | 3/4in NPT Thread - Use with 1in Adapter
In stock
$181.50
Bluelab Guardian Monitor | 6.5ft Probe Cable
In stock
$176.32 $366.91 -52%
Save 12%
Inline pH Sensor, Heavy Duty
In stock
$174.23 $197.40 -12%
Bluelab Multimedia pH Meter | 6.5ft Probe Cable
In stock
$155.54 $255.74 -39%
Bluelab Connect Range Extender | for Bluelab Connect Devices and Connect Stick
In stock
$154.23 $202.71 -24%
Save 18%
GroStar GS2-E replacement Soil Spear pH electrode
In stock
$149.59 $181.99 -18%
Save 18%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
In stock
$147.12 $178.99 -18%
Bluelab Commercial Truncheon Nutrient Meter | Measures EC, CF, & PPM
In stock
$134.61
Hanna GroLine Waterproof Hydroponic pH Tester
Out of stock
$131.99
Bluelab Leap pH Probe | For Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH Meters
In stock
$125.93
Bluelab Connect Stick 2 | for Bluelab Connect Devices
In stock
$111.93 $147.11 -24%
Bluelab pH Pen Meter | Measures pH and Temperature
In stock
$108.56
Save 10%
1.5" Digital Flow Meter
In stock
$104.27 $115.50 -10%
Save 14%
GroStar GS1 pH Pen
In stock
$99.72 $115.99 -14%
Save 10%
1.25" Digital Flow Meter
In stock
$98.99 $110.25 -10%
Bluelab Truncheon Nutrient Meter V2 | 40cm L - 16 in. L
In stock
$93.75 $128.70 -27%
Save 10%
1" Digital Flow Meter
In stock
$93.71 $103.95 -10%
Save 18%
GroStar GS3 EC Pen
In stock
$93.69 $113.99 -18%
Bluelab Conductivity Pen Meter | Measures Conductivity and Temperature
In stock
$91.19
Save 11%
2-in-1 EC + Temp Sensor for Reservoir
In stock
$89.75 $100.28 -11%
Save 6%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In stock
$89.14 $95.00 -6%
Bluelab Combo Meter pH Replacement Probe | pH probe
In stock
$79.90
Save 12%
pH Sensor for Reservoir
In stock
$77.87 $88.20 -12%
Save 2%
Aeromixer Aerobuddy Timer + Power Controller
In stock
$77.22 $79.00 -2%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$72.84 $99.95 -27%
Save 18%
GroStar GS4-E replacement pH/EC combo electrode
In stock
$65.75 $79.99 -18%
Blumat Digital Moisture Meter | 12in
Out of stock
$65.65 $85.99 -24%
Save 16%
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$63.27 $74.95 -16%
Save 18%
HM Digital Replacement pH Sensor Probe for HM-500
In stock
$49.31 $59.99 -18%
Save 18%
Gardena Smart Flow Water Meter
In stock
$48.48 $58.99 -18%
Save 18%
GroStar GS3-E replacement EC electrode
In stock
$44.37 $53.99 -18%
Save 18%
GroStar GS1-E replacement pH electrode
In stock
$41.91 $50.99 -18%
Save 18%
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$41.09 $49.99 -18%
Save 18%
HM Digital PH-80 pH/Temperature Meter
In stock
$38.25 $46.50 -18%
Save 13%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In stock
$37.42 $42.95 -13%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$37.39 $49.95 -25%
Save 16%
Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
In stock
$33.74 $39.95 -16%
Hanna Electrode Storage Solution
In stock
$30.39
Milwaukee Instruments pH600 Digital pH Pen
In stock
$29.94
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In stock
$28.67
Save 6%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$28.16 $30.00 -6%
Save 18%
Hydrofarm Electronic Water Timer
In stock
$25.88 $31.49 -18%
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