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ILWQ-22 Pen-type Redox Meter Digital LCD Pool Aquarium ORP Water Quality Tester with Backlight
$36.90 USD
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ILWQ-224 PH ORP Temperature 3-in-1 Combo Meter Tester Pen Type with Automatic Temperature Compensation
$78.90 USD
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ILWQ-224_PH 3-in-1 ORP Redox PH Temperature Combo Meter Tester w/ EXTRA Electrode, Pen Type ATC -1999~1999mV 0.00-14.00pH 0~50°C, Water Quality Aquarium Tank Swimming Pool Lab Spa Hydroponics
$86.90 USD
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ILWQ-226 -in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa
$38.90 USD
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ILWQ-226ph 3-in-1 pH Temperature Conductivity EC Meter Tester Digital Pen-Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa
$39.90 USD
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ILWQ-227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems
$14.90 USD
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ILWQ-228 ORP Redox Meter Tester -1999~1999mV, 1-point Calibration, Oxidation Reduction Potential, Aquariums, Swimming Pools, Water Treatment Systems, Aquaculture, Spa
$40.90 USD
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ILWQ-229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics
$47.90 USD
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ILWQ-23 Pen-type ORP Temperature Meter Redox Thermometer (°C/ °F) -1999mV~1999mV Pool Aquarium
$36.90 USD
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ILWQ-230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa
$59.90 USD
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ILWQ-231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics
$61.90 USD
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ILWQ-232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real-time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics
$52.90 USD
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