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Product Image:Hanna Instruments HI98128 Waterproof pHep®5 pH/Temperature TesterProduct Secondary Image:Hanna Instruments HI98128 Waterproof pHep®5 pH/Temperature Tester
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Product Image:Hanna Instruments HI9813-61 Portable pH/EC/TDS/Temperature Meter with CAL Check™Product Secondary Image:Hanna Instruments HI9813-61 Portable pH/EC/TDS/Temperature Meter with CAL Check™
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Product Image:Hanna Instruments HI98130 Combo pH/Conductivity/TDS Tester (High Range)Product Secondary Image:Hanna Instruments HI98130 Combo pH/Conductivity/TDS Tester (High Range)
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Product Image:Hanna Instruments GroLine HI9814 Waterproof Portable pH/EC/TDS/Temperature MeterProduct Secondary Image:Hanna Instruments GroLine HI9814 Waterproof Portable pH/EC/TDS/Temperature Meter
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Product Image:Hanna Instruments HI981420 GroLine Monitor for Hydroponic NutrientsProduct Secondary Image:Hanna Instruments HI981420 GroLine Monitor for Hydroponic Nutrients
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Product Image:Nutri+ TDS Quick Check Tester
Regular price$ 49.99 Sale price$ 44.95
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Product Image:AquaMaster P50 Pro Replaceable Electrode
Regular price$ 43.99 Sale price$ 39.95
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Product Image:AquaMaster P700 Pro 2 Replaceable pH Electrode
Regular price$ 85.99 Sale price$ 74.95
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Product Image:AquaMaster E50 Pro Replaceable Electrode
Regular price$ 37.95 Sale price$ 32.95
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Product Image:AquaMaster P110 Replaceable Electrode
Regular price$ 69.99 Sale price$ 59.95
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Product Image:AquaMaster P160 PRO pH EC PPM TDS Temp Combo MeterProduct Secondary Image:AquaMaster P160 PRO pH EC PPM TDS Temp Combo Meter
Regular price$ 179.99 Sale price$ 159.95
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Product Image:AquaMaster P700 Pro 2 pH EC CF PPM Combo MeterProduct Secondary Image:AquaMaster P700 Pro 2 pH EC CF PPM Combo Meter
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Product Image:AquaMaster E300 Pro Substrate EC/Temp MeterProduct Secondary Image:AquaMaster E300 Pro Substrate EC/Temp Meter
Regular price$ 209.99 Sale price$ 199.95
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Product Image:AquaMaster P700 Pro 2 Replaceable EC, CF, PPM Electrode
Regular price$ 84.99 Sale price$ 74.95
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Product Image:AquaMaster S300 Pro 2 Substrate pH/Temp MeterProduct Secondary Image:AquaMaster S300 Pro 2 Substrate pH/Temp Meter
Regular price$ 194.95 Sale price$ 184.95
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Product Image:AquaMaster E50 Pro EC Temp MeterProduct Secondary Image:AquaMaster E50 Pro EC Temp Meter
Regular price$ 109.99 Sale price$ 99.95
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Product Image:Bluelab Pulse Multimedia EC/MC MeterProduct Secondary Image:Bluelab Pulse Multimedia EC/MC Meter
Regular price$ 499.99 Sale price$ 448.95
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Product Image:PH METER KIT, PH PEN TESTER FOR WATERProduct Secondary Image:PH METER KIT, PH PEN TESTER FOR WATER
Regular price$ 109.99 Sale price$ 99.95
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Product Image:HYDROPONIC METER PRO KIT, ALL-IN-ONE PH PEN, INTERCHANGEABLE PROBEProduct Secondary Image:HYDROPONIC METER PRO KIT, ALL-IN-ONE PH PEN, INTERCHANGEABLE PROBE
Regular price$ 279.99 Sale price$ 258.95
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Product Image:Bluelab pH Controller Wi-FiProduct Secondary Image:Bluelab pH Controller Wi-Fi
Regular price$ 994.95 Sale price$ 799.95
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Product Image:TrolMaster Heavy-Duty Inline Nutrient EC/Temp Sensor (PCT-3)Product Secondary Image:TrolMaster Heavy-Duty Inline Nutrient EC/Temp Sensor (PCT-3)
Regular price$ 354.99 Sale price$ 329.95
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Product Image:TrolMaster Heavy Duty Inline EC/Temp Sensor (PCT-2)Product Secondary Image:TrolMaster Heavy Duty Inline EC/Temp Sensor (PCT-2)
Regular price$ 329.99 Sale price$ 304.95
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Product Image:TrolMaster Reservoir EC/Temp Sensor (PCT-1)Product Secondary Image:TrolMaster Reservoir EC/Temp Sensor (PCT-1)
Regular price$ 154.99 Sale price$ 139.95
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Product Image:Bluelab OnePenProduct Secondary Image:Bluelab OnePen
Regular price$ 389.99 Sale price$ 335.95
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