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pH Meters
Displaying 1 to 50 (of 79 products)
 Sunlight Supply, Inc. 
 24-7 Nutrient Monitor 
 24-7 Nutrient Monitor 
  
 $44.96 
  
 Control Wizard Products 
 Accurate pH 7 and Accurate pH 8 
 Accurate pH 7 and Accurate pH 8 
  
 $58.46 
  
 Bluelab 
 Blue Lab Combo Meter 
 Blue Lab Combo Meter 
  
 $73.76 
  
 Bluelab 
 Bluelab Commercial Truncheon 
 Bluelab Commercial Truncheon 
  
 $121.50 
  
 Bluelab 
 Bluelab Guardian Monitor 
 Bluelab Guardian Monitor 
  
 $73.76 
  
 Bluelab 
 Bluelab Nutrient Probe Cleaning Kit 
 Bluelab Nutrient Probe Cleaning Kit 
  
 $19.35 
  
 Bluelab 
 Bluelab Original Truncheon Meter 
 Bluelab Original Truncheon Meter 
  
 $121.50 
  
 Bluelab 
 Bluelab pH Meter 
 Bluelab pH Meter 
  
 $180.00 
  
 Bluelab 
 Bluelab pH Probe Clean Calibration Kit 
 Bluelab pH Probe Clean Calibration Kit 
  
 $27.00 
  
 Bluelab 
 BlueLab Soil pH Meter 
 BlueLab Soil pH Meter 
  
 $94.50 
  
 Bond Manufacturing 
 Bond 3 Way Soil Meter 
 Bond 3 Way Soil Meter 
  
 $8.96 
  
 Control Wizard Products 
 Control Wizard 1382 Calibration Solution 
 Control Wizard 1382 Calibration Solution 
  
 $4.46 
  
 HM Digital 
 Digital Waterproof Combo Meter COM-100 
 Digital Waterproof Combo Meter COM-100 
  
 $41.61 
  
 CWP Instruments 
 E.C. Dipstick 
 E.C. Dipstick 
  
 $76.46 
  
 Earth Juice 
 Earth Juice Natural pH Controller Up & Down 
 Earth Juice Natural pH Controller Up & Down 
  
 $14.53 
  
 EC Shake 
 EC Shake Nutrient Meter 
 EC Shake Nutrient Meter 
  
 $79.16 
  
 Future Harvest Development 
 EC/pH/Temp Continuous Monitor 
 EC/pH/Temp Continuous Monitor  
  
 $209.66 
  
 Green Air Products 
 GAP Calibration Tri-Pack Solutions 
 GAP Calibration Tri-Pack Solutions 
  
 $6.79 
  
 Green Air Products 
 GAP Electrode Cleaning Solutions Model ECS-T8 
 GAP Electrode Cleaning Solutions Model ECS-T8 
  
 $18.00 
  
 Green Air Products 
 GAP pH Calibration Kit 
 GAP pH Calibration Kit 
  
 $14.36 
  
 Green Air Products 
 GAP pH Electrode Storage Solutions 
 GAP pH Electrode Storage Solutions 
  
 $7.16 
  
 General Hydroponics 
 General Hydroponics pH Control Kit 
 General Hydroponics pH Control Kit 
  
 $15.48 
  
 General Hydroponics 
 General Hydroponics pH Test Kit 
 General Hydroponics pH Test Kit 
  
 $6.79 
  
 General Hydroponics 
 GH Meter Calibration Solutions 
 GH Meter Calibration Solutions 
  
 $6.79 
  
 General Hydroponics 
 GH pH Down Liquid & pH Down Dry 
 GH pH Down Liquid & pH Down Dry 
  
 $9.68 
  
 General Hydroponics 
 GH pH UP Liquid & pH UP Dry 
 GH pH UP Liquid & pH UP Dry 
  
 $9.68 
  
 Hanna Instruments 
 Hanna 1500PPM & 1413 uS-CM Calib. Solutions 
 Hanna 1500PPM & 1413 uS-CM Calib. Solutions 
  
 $18.44 
  
 Hanna Instruments 
 Hanna 20 ML Packet Solutions 
 Hanna 20 ML Packet Solutions 
  
 $1.19 
  
 Hanna Instruments 
 Hanna Batteries For PH-TDS Pens 12 Pack 
 Hanna Batteries For PH-TDS Pens 12 Pack 
  
 $18.53 
  
 Hanna Instruments 
 Hanna Checker pH Tester (HI 98103) 
 Hanna Checker pH Tester (HI 98103) 
  
 $26.06 
  
 Hanna Instruments 
 Hanna Combo Tester With Low Range EC 
 Hanna Combo Tester With Low Range EC 
  
 $54.26 
  
 Hanna Instruments 
 Hanna DiST 5 Waterproof Tester 
 Hanna DiST 5 Waterproof Tester 
  
 $62.54 
  
 Hanna Instruments 
 Hanna Grochek Combo Monitor Model HI 991404 
 Hanna Grochek Combo Monitor Model HI 991404 
  
 $103.46 
  
 Hanna Instruments 
 Hanna Grochek TDS Monitor Model HI983301N 
 Hanna Grochek TDS Monitor Model HI983301N 
  
 $103.46 
  
 Hanna Instruments 
 Hanna Grochek Water Resistant pH Indicator 
 Hanna Grochek Water Resistant pH Indicator 
  
 $57.56 
  
 Hanna Instruments 
 Hanna pH/TDS Temperature Monitor 
 Hanna pH/TDS Temperature Monitor 
  
 $57.56 
  
 Hanna Instruments 
 Hanna pH4 & pH7 Calibration Solutions 
 Hanna pH4 & pH7 Calibration Solutions 
  
 $16.88 
  
 Hanna Instruments 
 Hanna PHEP 4 Tester With Replaceable Electrode 
 Hanna PHEP 4 Tester With Replaceable Electrode 
  
 $54.26 
  
 Hanna Instruments 
 Hanna PHEP Tester (Model HI 98107) 
 Hanna PHEP Tester (Model HI 98107) 
  
 $51.83 
  
 Hanna Instruments 
 Hanna Primo TDS Tester 
 Hanna Primo TDS Tester 
  
 $34.16 
  
 Hanna Instruments 
 Hanna Waterproof pH/EC/TDS Meter 
 Hanna Waterproof pH/EC/TDS Meter 
  
 $43.46 
  
 HM Digital 
 HM Digital Aquapro TDS Water Tester Model AP-1 
 HM Digital Aquapro TDS Water Tester Model AP-1 
  
 $40.49 
  
 HM Digital 
 HM Digital Handheld TDS Tester Model TDS-3 
 HM Digital Handheld TDS Tester Model TDS-3 
  
 $33.26 
  
 HM Digital 
 HM Digital In-Line Dual TDS Monitor Model DM-1 
 HM Digital In-Line Dual TDS Monitor Model DM-1 
  
 $40.49 
  
 HM Digital 
 HM Digital TDS Calibration Solution 
 HM Digital TDS Calibration Solution 
  
 $7.16 
  
 HM Digital 
 HM Digital Waterproof pH Meter Model PH-200 
 HM Digital Waterproof pH Meter Model PH-200 
  
 $40.46 
  
 HortiCare 
 HortiCare Nutrient Check PPM 
 HortiCare Nutrient Check PPM 
  
 $64.76 
  
 HortiCare 
 HortiCare pH Tester 
 HortiCare pH Tester 
  
 $60.26 
  
 HortiCare 
 HortiStick 3-in-1 Multimeter 
 HortiStick 3-in-1 Multimeter 
  
 $105.26 
  
 Milwaukee 
 Martini pH55/Temp Tester and Probe 
 Martini pH55/Temp Tester and Probe 
  
 $44.55 
  
Displaying 1 to 50 (of 79 products)
Climate Control
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Block Covers 4" & 6"
Boss Cocogro Cubes
Botanicare Cocogro Loose
Cocogro Premium Organic Soilless Grow Media
CocoNot Premium Coconut Coir Alternative
View More...
Hydro Systems
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View More...
pH Meters
24-7 Nutrient Monitor
Accurate pH 7 and Accurate pH 8
Blue Lab Combo Meter
Bluelab Commercial Truncheon
Bluelab Guardian Monitor
Bluelab Nutrient Probe Cleaning Kit
Bluelab Original Truncheon Meter
Bluelab pH Meter
Bluelab pH Probe Clean Calibration Kit
BlueLab Soil pH Meter
View More...
Plant Care
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Pest Control
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Propagation
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Pumps & Purification
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