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Product Image:HM Digital Pocket Size TDS Monitor
$ 44.95 $ 36.99
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Product Image:HM Digital In-Line Single TDS Monitor w/ 1/4
$ 44.95
In stock
Product Image:HM Digital Quick Check Monitor (push-to-test)Product Secondary Image:HM Digital Quick Check Monitor (push-to-test)
$ 38.95
In stock
Product Image:HM Digital EC/TDS Controller w/ 4-20 mA SignalProduct Secondary Image:HM Digital EC/TDS Controller w/ 4-20 mA Signal
$ 377.95
In stock
Product Image:HM Digital Extended Range EC/TDS Controller
$ 298.95
In stock
Product Image:HM Digital Pocket Size TDS & Temp Meter
$ 32.95
In stock
Product Image:HM Digital Waterproof ORP/Temp Meter
$ 144.95
In stock
Product Image:HM DIGITAL TDS 1000 PPM CALIBRATION SOLUTION - 20 PACKETS OF 20ML
$ 32.95
In stock
Product Image:HM Digital COM-80 EC/TDS/Temp Water Resistant HydroTester
$ 53.95
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Product Image:HM DIGITAL TDS-3
$ 30.95
In stock
Product Image:HM Digital COM-100 EC/TDS/Temp Combo Waterproof Meter
$ 99.95
In stock
Save 4%
Product Image:TrolMaster Aqua-X Heavy Duty pH Sensor (PPH-2)Product Secondary Image:TrolMaster Aqua-X Heavy Duty pH Sensor (PPH-2)
$ 249.95 $ 238.99
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Product Image:HM Digital Waterproof pH/Temp Meter Water Analysis Instrument
$ 129.95
In stock
Product Image:HM Digital Replacement pH Sensor - PH - 200
$ 60.95
In stock
Product Image:HM Digital HydroMaster Continual Monitor for PH/EC/TDS/Temperature with Rechargeable Battery
$ 476.95
In stock
Save 19%
Product Image:Bluelab Guardian Monitor Connect Inline
$ 833.00 $ 677.95
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Save 17%
Product Image:Bluelab Multimedia pH Meter + Leap ProbeProduct Secondary Image:Bluelab Multimedia pH Meter + Leap Probe
$ 396.00 $ 328.95
In stock
Save 5%
Product Image:Bluelab Truncheon EC+TDS Nutrient Meter
$ 198.95 $ 189.95
In stock
Save 17%
Product Image:Bluelab Combo Meter Plus+ PH+EC+TEMP
$ 515.00 $ 429.95
In stock
Save 5%
Product Image:Bluelab Leap pH Probe for Solution + Substrates
$ 179.00 $ 169.95
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Save 26%
Product Image:Autopilot Digital pH Controller
$ 672.95 $ 499.99
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