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Rupoun Smart Bluetooth ORP Meter Digital Display Backlit Control Water Quality Tester for Swimming Pools, Spas, Hydroponics and Laboratories (7.4 inches / 18.7 cm) $37.75

Rupoun Smart Bluetooth ORP Meter Digital Display Backlit Control Water Quality Tester for Swimming Pools, Spas, Hydroponics and Laboratories (7.4 inches / 18.7 cm)
current price $37.75

Rupoun Smart Bluetooth ORP Meter Digital Display Backlit Control Water Quality Tester for Swimming Pools, Spas, Hydroponics and Laboratories (7.4 inches / 18.7 cm)

Free shipping, arrives in 3+ days

NFTIGB Portable Digital ORP Tester Pen Water Quality Monitor Detachable Water ORP Meter For Aquarium Hydroponics Swimming Pools -1999 to 1999 mV Range $24.19

NFTIGB Portable Digital ORP Tester Pen Water Quality Monitor Detachable Water ORP Meter For Aquarium Hydroponics Swimming Pools -1999 to 1999 mV Range
current price $24.19

NFTIGB Portable Digital ORP Tester Pen Water Quality Monitor Detachable Water ORP Meter For Aquarium Hydroponics Swimming Pools -1999 to 1999 mV Range

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Pre-Owned Orp (Paperback) 0380710382 9780380710386 $10.16

Pre-Owned Orp (Paperback) 0380710382 9780380710386
current price $10.16

Pre-Owned Orp (Paperback) 0380710382 9780380710386

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Pre-Owned: Good

Rupoun High-Accuracy Digital ORP Meter Pen, Professional Oxidation Reduction Potential Tester for Hydroponics and Water Quality Monitoring, 1100mV Range (7.4 x 1.5 inches / 18.8 x 3.9 cm) $47.16

Rupoun High-Accuracy Digital ORP Meter Pen, Professional Oxidation Reduction Potential Tester for Hydroponics and Water Quality Monitoring, 1100mV Range (7.4 x 1.5 inches / 18.8 x 3.9 cm)
current price $47.16

Rupoun High-Accuracy Digital ORP Meter Pen, Professional Oxidation Reduction Potential Tester for Hydroponics and Water Quality Monitoring, 1100mV Range (7.4 x 1.5 inches / 18.8 x 3.9 cm)

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Atlas Scientific Micro ORP Kit $299.99

Atlas Scientific Micro ORP Kit
current price $299.99
+$16.33 shipping

Atlas Scientific Micro ORP Kit

Shipping arrives in 3+ days

ORP Meter 3 In 1 PH ORP TEMP Tester With Backlight Multi-parameter Digital Tri-Meter Water Quality Monitor 40% Off ,Accurate and Reliable $86.83

ORP Meter 3 In 1 PH ORP TEMP Tester With Backlight Multi-parameter Digital Tri-Meter Water Quality Monitor 40% Off ,Accurate and Reliable
current price $86.83

ORP Meter 3 In 1 PH ORP TEMP Tester With Backlight Multi-parameter Digital Tri-Meter Water Quality Monitor 40% Off ,Accurate and Reliable

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Waterproof Orp Water Quality Tester ORP/Redox Meter For Pools Aquarium ,Reliable $58.94

Waterproof Orp Water Quality Tester ORP/Redox Meter For Pools Aquarium ,Reliable
current price $58.94

Waterproof Orp Water Quality Tester ORP/Redox Meter For Pools Aquarium ,Reliable

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High Precision ORP Pocket Tester, ORP Tester $70.38

High Precision ORP Pocket Tester, ORP Tester
current price $70.38

High Precision ORP Pocket Tester, ORP Tester

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Calibration Solution,ORP,500mL Bottle 061322 $133.22

Calibration Solution,ORP,500mL Bottle 061322
current price $133.22

Calibration Solution,ORP,500mL Bottle 061322

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Atlas Scientific ORP Calibration Set (3 Pouches) $15.99

Atlas Scientific ORP Calibration Set (3 Pouches)
current price $15.99
+$15.95 shipping

Atlas Scientific ORP Calibration Set (3 Pouches)

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169E ORP/Redox Tester Waterproof ORP Meter ORP Tester Potential Positive And Negative ORP Meter $52.21

169E ORP/Redox Tester Waterproof ORP Meter ORP Tester Potential Positive And Negative ORP Meter
current price $52.21

169E ORP/Redox Tester Waterproof ORP Meter ORP Tester Potential Positive And Negative ORP Meter

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ORP Meter,Single Line LCD ST10R $176.47

ORP Meter,Single Line LCD ST10R
current price $176.47

ORP Meter,Single Line LCD ST10R

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ORP-169F Waterproof ORP Meter High Quality ORP Meter Water Quality Tester Test Tool ORP Tester $23.19

ORP-169F Waterproof ORP Meter High Quality ORP Meter Water Quality Tester Test Tool ORP Tester
current price $23.19
+$2.00 shipping

ORP-169F Waterproof ORP Meter High Quality ORP Meter Water Quality Tester Test Tool ORP Tester

Shipping arrives in 3+ days

Osfvolr 4X ORP Calibration Powder Buffer Powder ORP Tester Measuring Calibration Solution 256MV $7.59

Osfvolr 4X ORP Calibration Powder Buffer Powder ORP Tester Measuring Calibration Solution 256MV
current price $7.59

Osfvolr 4X ORP Calibration Powder Buffer Powder ORP Tester Measuring Calibration Solution 256MV

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Digital Orp Meter With Automatic Calibration & Orp Powder Buffer, -1200~1200Mv High Accuracy Orp Tester For Water Testing $26.99 Was $35.09

Digital Orp Meter With Automatic Calibration & Orp Powder Buffer, -1200~1200Mv High Accuracy Orp Tester For Water Testing
current price Now $26.99, Was $35.09

Digital Orp Meter With Automatic Calibration & Orp Powder Buffer, -1200~1200Mv High Accuracy Orp Tester For Water Testing

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Atlas Scientific Industrial ORP Transmitter $259.99

Atlas Scientific Industrial ORP Transmitter
current price $259.99
+$16.07 shipping

Atlas Scientific Industrial ORP Transmitter

Shipping arrives in 3+ days

Ysi Calibration Solution,ORP,250mL Bottle 061321 $116.36

Ysi Calibration Solution,ORP,250mL Bottle 061321
current price $116.36

Ysi Calibration Solution,ORP,250mL Bottle 061321

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Atlas Scientific Surveyor Analog ORP Kit $79.99

Atlas Scientific Surveyor Analog ORP Kit
current price $79.99
+$16.19 shipping

Atlas Scientific Surveyor Analog ORP Kit

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Atlas Scientific EZO Complete-ORP $124.99

Atlas Scientific EZO Complete-ORP
current price $124.99
+$15.83 shipping

Atlas Scientific EZO Complete-ORP

Shipping arrives in 3+ days

Atlas Scientific Micro ORP Probe $243.99

Atlas Scientific Micro ORP Probe
current price $243.99
+$15.79 shipping

Atlas Scientific Micro ORP Probe

Shipping arrives in 3+ days

ORP Measurement Tool 501-2 BNC ORP Probe Featuring Metal Loop For Easy Cleaning And Accurate Readings Check $33.36

ORP Measurement Tool 501-2 BNC ORP Probe Featuring Metal Loop For Easy Cleaning And Accurate Readings Check
current price $33.36

ORP Measurement Tool 501-2 BNC ORP Probe Featuring Metal Loop For Easy Cleaning And Accurate Readings Check

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ORP Tester, -1200~1200mV Measurement Range, Waterproof Design For Durability, Automatic Temperature Compensation Ensures Accurate Readings Regardless Of Water Temperature, Instant $26.99

ORP Tester, -1200~1200mV Measurement Range, Waterproof Design For Durability, Automatic Temperature Compensation Ensures Accurate Readings Regardless Of Water Temperature, Instant
current price $26.99

ORP Tester, -1200~1200mV Measurement Range, Waterproof Design For Durability, Automatic Temperature Compensation Ensures Accurate Readings Regardless Of Water Temperature, Instant

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ORP Electrode Probe, Accurate Water Quality Testing With BNC Connector, 0,1999mV Range $44.57

ORP Electrode Probe, Accurate Water Quality Testing With BNC Connector, 0,1999mV Range
current price $44.57

ORP Electrode Probe, Accurate Water Quality Testing With BNC Connector, 0,1999mV Range

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Clearance ETHZZLE Orp Meter Tester White Lightweight Durable for Water Quality Testing $31.51 Was $35.41

Clearance
ETHZZLE Orp Meter Tester White Lightweight Durable for Water Quality Testing
current price Now $31.51, Was $35.41

ETHZZLE Orp Meter Tester White Lightweight Durable for Water Quality Testing

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ORP Meter Water Quality Analyser Aquarium Tester Pen Range:0~1999mg/LmV Backlight LCD For Laboratory Swimming Pool $67.52

ORP Meter Water Quality Analyser Aquarium Tester Pen Range:0~1999mg/LmV Backlight LCD For Laboratory Swimming Pool
current price $67.52

ORP Meter Water Quality Analyser Aquarium Tester Pen Range:0~1999mg/LmV Backlight LCD For Laboratory Swimming Pool

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Pre-Owned Orp Goes to the Hoop (Paperback) 0698118030 9780698118034 $16.08

Pre-Owned Orp Goes to the Hoop (Paperback) 0698118030 9780698118034
current price $16.08

Pre-Owned Orp Goes to the Hoop (Paperback) 0698118030 9780698118034

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Pre-Owned: Good

ORP-169C High Precision ORP Pocket Tester, ORP & Temperature Tester 2 In 1,Range: 0~+/-1999mV, Accuracy: +/-5mV $68.95

ORP-169C High Precision ORP Pocket Tester, ORP & Temperature Tester 2 In 1,Range: 0~+/-1999mV, Accuracy: +/-5mV
current price $68.95

ORP-169C High Precision ORP Pocket Tester, ORP & Temperature Tester 2 In 1,Range: 0~+/-1999mV, Accuracy: +/-5mV

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Industrial PH Controller ORP Meter Monitor Digital 0.02pH 1mV Upper Lower Limit Control Alarm PH Tester ,Trusted Expertise - ORP PROBE $81.02

Industrial PH Controller ORP Meter Monitor Digital 0.02pH 1mV Upper Lower Limit Control Alarm PH Tester ,Trusted Expertise - ORP PROBE
current price $81.02

Industrial PH Controller ORP Meter Monitor Digital 0.02pH 1mV Upper Lower Limit Control Alarm PH Tester ,Trusted Expertise - ORP PROBE

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Reduced price Elowen ORP Meter Water Pen ORP Meter with Backlit Display Portable Oxidation Reduction Potential Industry and Experiment Analyzer Redox Meter Measure Household Drinking Water Quality Analysis $20.97 Was $27.75

Reduced price
Elowen ORP Meter Water Pen ORP Meter with Backlit Display Portable Oxidation Reduction Potential Industry and Experiment Analyzer Redox Meter Measure Household Drinking Water Quality Analysis
current price Now $20.97, Was $27.75

Elowen ORP Meter Water Pen ORP Meter with Backlit Display Portable Oxidation Reduction Potential Industry and Experiment Analyzer Redox Meter Measure Household Drinking Water Quality Analysis

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2 in 1 Temperature/ORP Soil Tester,0.1 Resolution High Accuracy Digital for Gardening Plant Flower $57.68

2 in 1 Temperature/ORP Soil Tester,0.1 Resolution High Accuracy Digital for Gardening Plant Flower
current price $57.68

2 in 1 Temperature/ORP Soil Tester,0.1 Resolution High Accuracy Digital for Gardening Plant Flower

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Large Display ORP Pen $115.66

Large Display ORP Pen
current price $115.66

Large Display ORP Pen

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-300 Water Tester PH ORP Temperature Tester Temp Meter Aquarium Pool Hydroponics Drinking Water Quality Detector $21.04

-300 Water Tester PH ORP Temperature Tester Temp Meter Aquarium Pool Hydroponics Drinking Water Quality Detector
current price $21.04

-300 Water Tester PH ORP Temperature Tester Temp Meter Aquarium Pool Hydroponics Drinking Water Quality Detector

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Industrial PH Controller ORP Meter Monitor Digital 0.02pH 1mV Upper Lower Limit Control Alarm PH Tester ,Multifunctional $234.81

Industrial PH Controller ORP Meter Monitor Digital 0.02pH 1mV Upper Lower Limit Control Alarm PH Tester ,Multifunctional
Available in additional 5 options
current price $234.81
Options from $104.81

Industrial PH Controller ORP Meter Monitor Digital 0.02pH 1mV Upper Lower Limit Control Alarm PH Tester ,Multifunctional

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ORP Probe for use with Water Quality Meter $148.42

ORP Probe for use with Water Quality Meter
current price $148.42
+$9.98 shipping

ORP Probe for use with Water Quality Meter

Shipping arrives in 3+ days

Suodoka 2 in 1 Digital ORP/TEMP Meter Tester for Aquarium Pool Hydroponic Water Monitor, Waterproof Pen Type Redox Potential Detector 7.4 x 1.38 inches / 18.8 x 3.5 cm $27.13

Suodoka 2 in 1 Digital ORP/TEMP Meter Tester for Aquarium Pool Hydroponic Water Monitor, Waterproof Pen Type Redox Potential Detector 7.4 x 1.38 inches / 18.8 x 3.5 cm
current price $27.13

Suodoka 2 in 1 Digital ORP/TEMP Meter Tester for Aquarium Pool Hydroponic Water Monitor, Waterproof Pen Type Redox Potential Detector 7.4 x 1.38 inches / 18.8 x 3.5 cm

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Yajisi Portable ORP Conductivity Tester Meter Water Quality Testing Pen with LED Display for Aquarium, -1200 to 1200MV Range, Automatic Temperature Compensation, Includes Batteries for Hydroponics $34.87

Yajisi Portable ORP Conductivity Tester Meter Water Quality Testing Pen with LED Display for Aquarium, -1200 to 1200MV Range, Automatic Temperature Compensation, Includes Batteries for Hydroponics
current price $34.87

Yajisi Portable ORP Conductivity Tester Meter Water Quality Testing Pen with LED Display for Aquarium, -1200 to 1200MV Range, Automatic Temperature Compensation, Includes Batteries for Hydroponics

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5 In 1 Water Quality Tester Monitor PH EC TDS Temperature ORP Meter For Pools Drinking Water Aquariums Digital Quality Detector ,Multifunctional $49.92

5 In 1 Water Quality Tester Monitor PH EC TDS Temperature ORP Meter For Pools Drinking Water Aquariums Digital Quality Detector ,Multifunctional
current price $49.92

5 In 1 Water Quality Tester Monitor PH EC TDS Temperature ORP Meter For Pools Drinking Water Aquariums Digital Quality Detector ,Multifunctional

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Oasiva Professional ORP Meter Tester Redox 1999mV Range BNC Type Connector 1.2cm Dia $44.52

Oasiva Professional ORP Meter Tester Redox 1999mV Range BNC Type Connector 1.2cm Dia
current price $44.52

Oasiva Professional ORP Meter Tester Redox 1999mV Range BNC Type Connector 1.2cm Dia

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Replaceable ORP electrode BNC connection water quality detector swimming pool $43.38

Replaceable ORP electrode BNC connection water quality detector swimming pool
current price $43.38

Replaceable ORP electrode BNC connection water quality detector swimming pool

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Suodoka 4-in-1 ORP H2 pH Temp Meter, High Sensitivity Backlit LCD Digital Water Quality Tester Pen for Swimming Pool, Fish Tank, Drinking Water (7.09 inches / 180 mm) $27.72

Suodoka 4-in-1 ORP H2 pH Temp Meter, High Sensitivity Backlit LCD Digital Water Quality Tester Pen for Swimming Pool, Fish Tank, Drinking Water (7.09 inches / 180 mm)
current price $27.72

Suodoka 4-in-1 ORP H2 pH Temp Meter, High Sensitivity Backlit LCD Digital Water Quality Tester Pen for Swimming Pool, Fish Tank, Drinking Water (7.09 inches / 180 mm)

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