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Meters & Controllers

Gardena Smart Flow Water Meter
Out of stock
$48.84 $58.99 -17%
Bluelab Conductivity Standard Solution | 120ml - 2.77EC
In Stock: 182
$16.09 $21.37 -25%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In Stock: 95
$32.76 $35.00 -6%
Active Aqua Grow Flow Ebb and Gro Controller Unit w/2 Pumps
In Stock: 128
$322.35 $389.33 -17%
Bluelab Connect Stick 2 | for Bluelab Connect Devices
In Stock: 170
$94.94 $147.11 -35%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In Stock: 67
$21.64 $28.73 -25%
HM Digital PH-80 pH/Temperature Meter
In Stock: 129
$38.53 $46.50 -17%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In Stock: 338
$93.15 $99.95 -7%
Bluelab pH Probe KCl Storage Solution | 250ml
In Stock: 346
$26.80 $35.86 -25%
Bluelab Meter Carrying Case | Meter Not Included
In Stock: 169
$23.97 $29.08 -18%
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
In Stock: 97
$9.22 $9.49 -3%
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In Stock: 6
$26.99 $27.99 -4%
GroStar pH calibration kit (pH 4/7, 8 oz. each)
In Stock: 96
$15.72 $18.99 -17%
GroStar GS1 pH Pen
In Stock: 283
$99.72 $115.99 -14%
HM Digital TDS-3 Handheld TDS meter
In Stock: 40
$22.76 $33.99 -33%
Dilution Solutions HM Digital/EC Calibration Solution | 1000 PPM
In Stock: 29
$8.36 $8.95 -7%
GroStar GS3 EC Pen
In Stock: 95
$94.38 $113.99 -17%
Aeromixer Aerobuddy Timer + Power Controller
In Stock: 63
$78.98 $79.00
GroStar GS2-E replacement Soil Spear pH electrode
In Stock: 101
$150.68 $181.99 -17%
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
Out of stock
$74.18 $359.00 -79%
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