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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
$2,949.75
Aqua-X Pro Controller with AMP-3 Sensor Board,Free App
In stock
$2,500.19 $2,623.95 -5%
Aqua-X Plus Controller with AMP-3 Sensor Board,Free App
In stock
$1,259.54
Bluelab Connect Pro Controller | Remote Monitoring of pH, EC and Temperature
Out of stock
$1,242.54
Bluelab Guardian Monitor In-Line Connect | 10 ft In-line Probe Cable
Out of stock
$558.66
Bluelab pH Controller | 6.5ft Probe Cable - Dose pH Up or pH Down
In stock
$490.98 $640.60 -23%
Bluelab Guardian Monitor Connect | 6.5ft Probe Cable
Out of stock
$425.44
Bluelab Guardian Monitor | 6.5ft Probe Cable
Out of stock
$381.02
Bluelab Combo Meter Plus | Measures pH, Conductivity & Temperature
In stock
$380.96
Bluelab Pulse Multimedia EC & MC Meter | Measures EC, Moisture & Temperature
In stock
$333.22
Bluelab Connect pH Controller | for Bluelab Connect Devices
Out of stock
$330.79 $683.36 -52%
Aqua-X Controller with Water Detector set, Free App
In stock
$330.74 $348.60 -5%
Bluelab Combo Meter | 6.5ft Probe Cable
In stock
$323.66
Active Aqua Grow Flow Ebb and Gro Controller Unit w/2 Pumps
In stock
$322.35 $389.33 -17%
Hanna pH, EC & TDS Tester | High Range
Out of stock
$261.10
Heavy Duty Nutrient EC+Temp Sensor drop-in/inline compatible
In stock
$221.39 $241.50 -8%
Water Content Sensor with Cable Set
In stock
$218.69 $241.50 -9%
GroStar GS2 Soil pH Pen
In stock
$212.78 $256.99 -17%
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
In stock
$208.38 $359.00 -42%
Inline EC+Temp Sensor, Heavy Duty
In stock
$199.79 $219.45 -9%
Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible
In stock
$199.79 $219.45 -9%
Bluelab Soil pH Pen
In stock
$199.56
Bluelab pH Probe Inline | 3/4in NPT Thread - Use with 1in Adapter
In stock
$199.56
Milwaukee Instruments MA871 Digital Brix Refractometer, Range 0-85%
In stock
$190.97 $199.00 -4%
Inline pH Sensor, Heavy Duty
In stock
$178.19 $197.40 -10%
Bluelab Multimedia pH Meter | 6.5ft Probe Cable
In stock
$168.42 $255.74 -34%
GroStar GS2-E replacement Soil Spear pH electrode
In stock
$150.68 $181.99 -17%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
In stock
$148.20 $178.99 -17%
Bluelab Commercial Truncheon Nutrient Meter | Measures EC, CF, & PPM
In stock
$147.99
Bluelab Leap pH Probe | For Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH Meters
In stock
$138.46
Hanna GroLine Waterproof Hydroponic pH Tester
Out of stock
$134.99
Bluelab Connect Range Extender | for Bluelab Connect Devices and Connect Stick
In stock
$130.82 $202.71 -35%
Bluelab pH Pen Meter | Measures pH and Temperature
In stock
$119.35
Bluelab Connect Stick 2 | for Bluelab Connect Devices
In stock
$112.75 $147.11 -23%
1.5" Digital Flow Meter
In stock
$106.64 $115.50 -8%
Bluelab Truncheon Nutrient Meter V2 | 40cm L - 16 in. L
In stock
$101.51 $128.70 -21%
1.25" Digital Flow Meter
In stock
$101.24 $110.25 -8%
Bluelab Conductivity Pen Meter | Measures Conductivity and Temperature
In stock
$100.26
GroStar GS1 pH Pen
In stock
$98.27 $115.99 -15%
1" Digital Flow Meter
In stock
$95.84 $103.95 -8%
GroStar GS3 EC Pen
In stock
$94.38 $113.99 -17%
2-in-1 EC + Temp Sensor for Reservoir
In stock
$91.79 $100.28 -8%
Bluelab Combo Meter pH Replacement Probe | pH probe
In stock
$87.84
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In stock
$87.74 $95.00 -8%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$85.01 $99.95 -15%
pH Sensor for Reservoir
In stock
$79.64 $88.20 -10%
Aeromixer Aerobuddy Timer + Power Controller
In stock
$78.98 $79.00
GroStar GS4-E replacement pH/EC combo electrode
In stock
$66.23 $79.99 -17%
Blumat Digital Moisture Meter | 12in
Out of stock
$66.13 $85.99 -23%
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$63.75 $74.95 -15%
Gardena Smart Flow Water Meter
In stock
$48.84 $58.99 -17%
GroStar GS3-E replacement EC electrode
In stock
$44.70 $53.99 -17%
GroStar GS1-E replacement pH electrode
In stock
$42.21 $50.99 -17%
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$41.39 $49.99 -17%
HM Digital PH-80 pH/Temperature Meter
In stock
$38.53 $46.50 -17%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$37.66 $49.95 -25%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In stock
$35.56 $42.95 -17%
Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
Out of stock
$33.99 $39.95 -15%
HM Digital Replacement pH Sensor Probe for HM-500
Out of stock
$31.88 $59.99 -47%
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In stock
$31.52
Hanna Electrode Storage Solution
In stock
$31.08
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$28.80 $30.00 -4%
Milwaukee Instruments pH600 Digital pH Pen
In stock
$27.82 $29.00 -4%
Hydrofarm Electronic Water Timer
In stock
$26.07 $31.49 -17%
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