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Meters & Controllers

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Hm Digital Pro Series Pen Style Orp/Temp Meter
In Stock: 28
$82.91 $109.95 -25%
pH Sensor for Reservoir
In Stock: 7
$80.82 $88.20 -8%
HM Digital Waterproof pH Meter
In Stock: 570
$78.73 $113.16 -30%
HM Digital Dual TDS Monitor (DM-3)
In Stock: 73
$78.45
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
Out of stock
$76.32 $359.00 -79%
Aeromixer Aerobuddy Timer + Power Controller
In Stock: 59
$68.92 $79.00 -13%
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$67.26 $74.95 -10%
GroStar GS4-E replacement pH/EC combo electrode
In Stock: 82
$66.71 $79.99 -17%
Blumat Digital Moisture Meter | 12in
Out of stock
$124.60 / $62.30 per unit
(minimum purchase of 2)
HM Digital LeakBlock Sensor
In Stock: 22
$59.40
HM Digital Replacement pH sensor for HM-500/ HM-200
In Stock: 14
$58.88
Hydro-Logic Flowmaster Flow Meter 3/8 In
In Stock: 1
$58.46 $84.02 -30%
Hydro-Logic TDS Pro White in/out PPM monitor with 1/2" in & 3/8" out
In Stock: 37
$56.57 $82.95 -32%
Bluelab pH Probe KCl Storage Solution 120 ml (Case of 6)
Out of stock
$54.91 $88.20 -38%
Hm Digital Dual Tds Monitor (Dm-3)
In Stock: 94
$50.48 $66.95 -25%
Gardena Smart Flow Water Meter
Out of stock
$49.19 $58.99 -17%
HM Digital Replacement TDS/EC sensor for HM-200
In Stock: 10
$48.17
Bluelab 2.77EC Conductivity Solutions | 18ml
Out of stock
$47.38
Bluelab 4.0 Calibration Solutions | 18ml
In Stock: 1
$47.38
Bluelab 7.0 Calibration Solutions | 18ml
In Stock: 2
$47.38
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