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30% off
2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester 2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester

2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester

$32.89$46.99

51% off
7 in 1 Water Quality Tester Pen Meter for Pools, Drinking Water Aquariums hydroponic Cooking Water:PH/TDS/EC/ORP/S.G/Salinity 7 in 1 Water Quality Tester Pen Meter for Pools, Drinking Water Aquariums hydroponic Cooking Water:PH/TDS/EC/ORP/S.G/Salinity

7 in 1 Water Quality Tester Pen Meter for Pools, Drinking Water Aquariums hydroponic Cooking Water:PH/TDS/EC/ORP/S.G/Salinity

$27.29$55.70

3 sold
37% off
IALJ-TDS Tester LCD Online Water Quality Meter 0-9990PPM Detection Water TDS Monitor Inlet Outlet Test For Pool Laboratory IALJ-TDS Tester LCD Online Water Quality Meter 0-9990PPM Detection Water TDS Monitor Inlet Outlet Test For Pool Laboratory

IALJ-TDS Tester LCD Online Water Quality Meter 0-9990PPM Detection Water TDS Monitor Inlet Outlet Test For Pool Laboratory

$18.77$29.79

35% off
Digital PH Meter And TDS Meter High Precision For Water Quality Tester Testing Kit Suitable Aquarium Swimming Pool Digital PH Meter And TDS Meter High Precision For Water Quality Tester Testing Kit Suitable Aquarium Swimming Pool

Digital PH Meter And TDS Meter High Precision For Water Quality Tester Testing Kit Suitable Aquarium Swimming Pool

$12.42$19.11

2 sold
4% off
COM-600 7 in 1 PH TDS EC ORP Salinity S. G Temp Meter Water Quality Monitor Tester IP67 for Drinking Water, Aquariums PH Meter COM-600 7 in 1 PH TDS EC ORP Salinity S. G Temp Meter Water Quality Monitor Tester IP67 for Drinking Water, Aquariums PH Meter

COM-600 7 in 1 PH TDS EC ORP Salinity S. G Temp Meter Water Quality Monitor Tester IP67 for Drinking Water, Aquariums PH Meter

$19.20$20.03

1 sold
38% off
4 in 1 YY-400 PH/ORP/H2&TEM Meter Digital Hydrogen Ion Concentration Tester for Aquarium, Swimming Pool, Backlight 4 in 1 YY-400 PH/ORP/H2&TEM Meter Digital Hydrogen Ion Concentration Tester for Aquarium, Swimming Pool, Backlight

4 in 1 YY-400 PH/ORP/H2&TEM Meter Digital Hydrogen Ion Concentration Tester for Aquarium, Swimming Pool, Backlight

$14.01$22.60

10 sold
2% off
Portable Pen Portable Digital Water Meter Filter Measuring Water Quality Purity Tester TDS Meter 15%Off Portable Pen Portable Digital Water Meter Filter Measuring Water Quality Purity Tester TDS Meter 15%Off

Portable Pen Portable Digital Water Meter Filter Measuring Water Quality Purity Tester TDS Meter 15%Off

$3.79$3.88

127 sold
SM1 Single/TRM1 Triple LCD Display Online TDS Meter Monitor Water Quality Purity Tester Temp Aquarium Laboratory Water PH Meter SM1 Single/TRM1 Triple LCD Display Online TDS Meter Monitor Water Quality Purity Tester Temp Aquarium Laboratory Water PH Meter

SM1 Single/TRM1 Triple LCD Display Online TDS Meter Monitor Water Quality Purity Tester Temp Aquarium Laboratory Water PH Meter

$135.72$135.72

6 sold
8% off
7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter 7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter

7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter

$6.98$7.61

52 sold
3% off
4 in 1 PH Meter Digital PH/TDS/EC/Temperature Drinking Water Quality Analyzer Tester For Swimming Pool Aquarium Drinking Water 4 in 1 PH Meter Digital PH/TDS/EC/Temperature Drinking Water Quality Analyzer Tester For Swimming Pool Aquarium Drinking Water

4 in 1 PH Meter Digital PH/TDS/EC/Temperature Drinking Water Quality Analyzer Tester For Swimming Pool Aquarium Drinking Water

$17.03$17.70

2 sold
21% off
3 In1 TDS EC Meter Temperature Tester Pen Digital Water Quality DetectionTester For Water Purity TEMP PPM Tester Swimming Pool 3 In1 TDS EC Meter Temperature Tester Pen Digital Water Quality DetectionTester For Water Purity TEMP PPM Tester Swimming Pool

3 In1 TDS EC Meter Temperature Tester Pen Digital Water Quality DetectionTester For Water Purity TEMP PPM Tester Swimming Pool

$0.92$1.16

14 sold
2% off
110V 220V TDS Electrolyser Water Quality Detector Test Pen Pure Water Tester Detection Tool for Household Swimming Pool US EU 110V 220V TDS Electrolyser Water Quality Detector Test Pen Pure Water Tester Detection Tool for Household Swimming Pool US EU

110V 220V TDS Electrolyser Water Quality Detector Test Pen Pure Water Tester Detection Tool for Household Swimming Pool US EU

$40.87$41.95

13 sold
7% off
Digital Water Quality Tester Dual Probe TDS EC Meter Range PPM Tester Total Dissolved Solids Monitor For Fish Tank Aquarium Digital Water Quality Tester Dual Probe TDS EC Meter Range PPM Tester Total Dissolved Solids Monitor For Fish Tank Aquarium

Digital Water Quality Tester Dual Probe TDS EC Meter Range PPM Tester Total Dissolved Solids Monitor For Fish Tank Aquarium

$19.15$20.65

3 sold
51% off
EC-3185 Waterproof Soil Meter EC/TDS/CF Soil Tester with Probe for Greenhouse Cultivation, Horticulture Cultivation, Laboratory EC-3185 Waterproof Soil Meter EC/TDS/CF Soil Tester with Probe for Greenhouse Cultivation, Horticulture Cultivation, Laboratory

EC-3185 Waterproof Soil Meter EC/TDS/CF Soil Tester with Probe for Greenhouse Cultivation, Horticulture Cultivation, Laboratory

$27.34$55.80

4 sold
49% off
NEW Online PH-110 Digital Industrial Ph /ORP Meter Sensor Electrode Ph Probe for Sewage Detection,Dosing Control NEW Online PH-110 Digital Industrial Ph /ORP Meter Sensor Electrode Ph Probe for Sewage Detection,Dosing Control

NEW Online PH-110 Digital Industrial Ph /ORP Meter Sensor Electrode Ph Probe for Sewage Detection,Dosing Control

$20.93$41.03

15 sold
4% off
Bluetooth Soil Tester EC TDS CF Temperature Meter Moisture Humidity Sensor Plant Monitor Detector for Garden Greenhouse Bluetooth Soil Tester EC TDS CF Temperature Meter Moisture Humidity Sensor Plant Monitor Detector for Garden Greenhouse

Bluetooth Soil Tester EC TDS CF Temperature Meter Moisture Humidity Sensor Plant Monitor Detector for Garden Greenhouse

$26.87$28.05

3 sold
30% off
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,ORP 222mV PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,ORP 222mV

PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,ORP 222mV

$4.05$5.78

1 sold
50% off
0-9999ppm 3in1 PH Tester Water Quality Tester TDS/EC/TEMP With Backlight Water Quality Testing Conductivity Water Quality Tester 0-9999ppm 3in1 PH Tester Water Quality Tester TDS/EC/TEMP With Backlight Water Quality Testing Conductivity Water Quality Tester

0-9999ppm 3in1 PH Tester Water Quality Tester TDS/EC/TEMP With Backlight Water Quality Testing Conductivity Water Quality Tester

$6.08$12.16

6 sold
50% off
0-9990ppm Water Quality Tester Precise Digital Pool Water Tester Drinking Water Tester Portable Hard Water Tester Aquarium Water 0-9990ppm Water Quality Tester Precise Digital Pool Water Tester Drinking Water Tester Portable Hard Water Tester Aquarium Water

0-9990ppm Water Quality Tester Precise Digital Pool Water Tester Drinking Water Tester Portable Hard Water Tester Aquarium Water

$7.70$15.41

5 sold
6% off
8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium 8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium

8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium

$20.23$21.75

8 sold
21% off
Rechargeable 5 In 1 Salinity Meter PH Water Quality Tester Digital EC TDS TEMP Monitor For Aquarium, Hydroponics, Pool Rechargeable 5 In 1 Salinity Meter PH Water Quality Tester Digital EC TDS TEMP Monitor For Aquarium, Hydroponics, Pool

Rechargeable 5 In 1 Salinity Meter PH Water Quality Tester Digital EC TDS TEMP Monitor For Aquarium, Hydroponics, Pool

$27.07$34.26

53% off
Professional Hydroponic Meter 4 In 1 PH EC TDS TEMP Tester Monitor Long Probes For Nutrient Solutions, Aquarium Professional Hydroponic Meter 4 In 1 PH EC TDS TEMP Tester Monitor Long Probes For Nutrient Solutions, Aquarium

Professional Hydroponic Meter 4 In 1 PH EC TDS TEMP Tester Monitor Long Probes For Nutrient Solutions, Aquarium

$22.23$47.30

1 sold
6% off
Professional 4 IN 1 TDS PH EC Temp Meter PH Tester Water Quality Testing Temperature Monitor Pen Acid Base Measurement Tools Professional 4 IN 1 TDS PH EC Temp Meter PH Tester Water Quality Testing Temperature Monitor Pen Acid Base Measurement Tools

Professional 4 IN 1 TDS PH EC Temp Meter PH Tester Water Quality Testing Temperature Monitor Pen Acid Base Measurement Tools

$13.43$14.36

19 sold
24% off
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions

PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions

$5.36$7.05

2 sold
56% off
TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter

TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter

$34.80$79.10

8943 sold
35% off
RM-220(S) Resistivity Meter EC Sensor Electronic Conductivity Meter High Purity Water Mixed Bed EDI Equipment TDS Tester RM-220(S) Resistivity Meter EC Sensor Electronic Conductivity Meter High Purity Water Mixed Bed EDI Equipment TDS Tester

RM-220(S) Resistivity Meter EC Sensor Electronic Conductivity Meter High Purity Water Mixed Bed EDI Equipment TDS Tester

$16.25$25.00

5 sold
4% off
4-in-1 Smart Soil Tester EC TDS CF Temp Detector High Accuracy Bluetooth APP Control Conductivity Meter for Gardening Farming 4-in-1 Smart Soil Tester EC TDS CF Temp Detector High Accuracy Bluetooth APP Control Conductivity Meter for Gardening Farming

4-in-1 Smart Soil Tester EC TDS CF Temp Detector High Accuracy Bluetooth APP Control Conductivity Meter for Gardening Farming

$24.49$25.53

5 sold
30% off
PH EC ORP TDS Calibration Buffer Liquid 4.00/6.86/9.18 Solution 35ppt 84us/cm 1413us/cm 1382ppm 222mv Standard Solution Kit Set PH EC ORP TDS Calibration Buffer Liquid 4.00/6.86/9.18 Solution 35ppt 84us/cm 1413us/cm 1382ppm 222mv Standard Solution Kit Set

PH EC ORP TDS Calibration Buffer Liquid 4.00/6.86/9.18 Solution 35ppt 84us/cm 1413us/cm 1382ppm 222mv Standard Solution Kit Set

$9.00$12.86

8 sold
20% off
3 in 1 PH Meter Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Quality Tester PH Meter Tester for Aquarium Swimming Pool 3 in 1 PH Meter Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Quality Tester PH Meter Tester for Aquarium Swimming Pool

3 in 1 PH Meter Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Quality Tester PH Meter Tester for Aquarium Swimming Pool

$1.66$2.07

2 sold
6% off
5 in 1 EC TDS Salinity Temperature pH Meter Water Quality Tester for Food Beverages Salt Content Aquarium Seawater ATC Meter 5 in 1 EC TDS Salinity Temperature pH Meter Water Quality Tester for Food Beverages Salt Content Aquarium Seawater ATC Meter

5 in 1 EC TDS Salinity Temperature pH Meter Water Quality Tester for Food Beverages Salt Content Aquarium Seawater ATC Meter

$15.91$16.95

31 sold
50% off
Digital Water Quality Tester TDS EC Meter Range 0-9990 Multifunctional Water Purity Temperature Meter TEMP PPM Tester Digital Water Quality Tester TDS EC Meter Range 0-9990 Multifunctional Water Purity Temperature Meter TEMP PPM Tester

Digital Water Quality Tester TDS EC Meter Range 0-9990 Multifunctional Water Purity Temperature Meter TEMP PPM Tester

$14.37$28.74

189 sold
New 7 in 1 PH/TDS/EC/ORP/Salinity /S. G/Temperature Meter C-600 Water Quality Tester for Drinking Water, Aquariums PH Meter New 7 in 1 PH/TDS/EC/ORP/Salinity /S. G/Temperature Meter C-600 Water Quality Tester for Drinking Water, Aquariums PH Meter

New 7 in 1 PH/TDS/EC/ORP/Salinity /S. G/Temperature Meter C-600 Water Quality Tester for Drinking Water, Aquariums PH Meter

$23.74$23.74

56 sold
Auto-calibration 5 in 1 Multifunctional PH Meter PH/EC/TDS/SALT/TEMP Meter LCD Display Water Quality Tester for Drinking Water Auto-calibration 5 in 1 Multifunctional PH Meter PH/EC/TDS/SALT/TEMP Meter LCD Display Water Quality Tester for Drinking Water

Auto-calibration 5 in 1 Multifunctional PH Meter PH/EC/TDS/SALT/TEMP Meter LCD Display Water Quality Tester for Drinking Water

$25.79$25.79

6 in 1 Smart Floating Swimming Pool Water Analyzer BT Water Quality Tester Chlorine ORP TDS Temp PH Meter Water Quality Detector 6 in 1 Smart Floating Swimming Pool Water Analyzer BT Water Quality Tester Chlorine ORP TDS Temp PH Meter Water Quality Detector

6 in 1 Smart Floating Swimming Pool Water Analyzer BT Water Quality Tester Chlorine ORP TDS Temp PH Meter Water Quality Detector

$30.51$30.51

2 sold
31% off
Yieryi Replacement Sensor for 7 In 1 PH /TDS/EC/ ORP/Seawater Specific Gravity/Salinity/Temperature C-600 Meter Device Probe

Yieryi Replacement Sensor for 7 In 1 PH /TDS/EC/ ORP/Seawater Specific Gravity/Salinity/Temperature C-600 Meter Device Probe

$14.21$20.60

6 sold
30% off
2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester 2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester

2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester

$32.89 $46.99

Categories: Tools, Measurement & Analysis Instruments

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51% off
7 in 1 Water Quality Tester Pen Meter for Pools, Drinking Water Aquariums hydroponic Cooking Water:PH/TDS/EC/ORP/S.G/Salinity 7 in 1 Water Quality Tester Pen Meter for Pools, Drinking Water Aquariums hydroponic Cooking Water:PH/TDS/EC/ORP/S.G/Salinity

7 in 1 Water Quality Tester Pen Meter for Pools, Drinking Water Aquariums hydroponic Cooking Water:PH/TDS/EC/ORP/S.G/Salinity

$27.29 $55.70

3 sold

Categories: Tools, Measurement & Analysis Instruments

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37% off
IALJ-TDS Tester LCD Online Water Quality Meter 0-9990PPM Detection Water TDS Monitor Inlet Outlet Test For Pool Laboratory IALJ-TDS Tester LCD Online Water Quality Meter 0-9990PPM Detection Water TDS Monitor Inlet Outlet Test For Pool Laboratory

IALJ-TDS Tester LCD Online Water Quality Meter 0-9990PPM Detection Water TDS Monitor Inlet Outlet Test For Pool Laboratory

$18.77 $29.79

Categories: Tools, Measurement & Analysis Instruments

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35% off
Digital PH Meter And TDS Meter High Precision For Water Quality Tester Testing Kit Suitable Aquarium Swimming Pool Digital PH Meter And TDS Meter High Precision For Water Quality Tester Testing Kit Suitable Aquarium Swimming Pool

Digital PH Meter And TDS Meter High Precision For Water Quality Tester Testing Kit Suitable Aquarium Swimming Pool

$12.42 $19.11

2 sold

Categories: Tools, Measurement & Analysis Instruments

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4% off
COM-600 7 in 1 PH TDS EC ORP Salinity S. G Temp Meter Water Quality Monitor Tester IP67 for Drinking Water, Aquariums PH Meter COM-600 7 in 1 PH TDS EC ORP Salinity S. G Temp Meter Water Quality Monitor Tester IP67 for Drinking Water, Aquariums PH Meter

COM-600 7 in 1 PH TDS EC ORP Salinity S. G Temp Meter Water Quality Monitor Tester IP67 for Drinking Water, Aquariums PH Meter

$19.20 $20.03

1 sold

Categories: Tools, Measurement & Analysis Instruments

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38% off
4 in 1 YY-400 PH/ORP/H2&TEM Meter Digital Hydrogen Ion Concentration Tester for Aquarium, Swimming Pool, Backlight 4 in 1 YY-400 PH/ORP/H2&TEM Meter Digital Hydrogen Ion Concentration Tester for Aquarium, Swimming Pool, Backlight

4 in 1 YY-400 PH/ORP/H2&TEM Meter Digital Hydrogen Ion Concentration Tester for Aquarium, Swimming Pool, Backlight

$14.01 $22.60

10 sold

Categories: Tools, Measurement & Analysis Instruments

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2% off
Portable Pen Portable Digital Water Meter Filter Measuring Water Quality Purity Tester TDS Meter 15%Off Portable Pen Portable Digital Water Meter Filter Measuring Water Quality Purity Tester TDS Meter 15%Off

Portable Pen Portable Digital Water Meter Filter Measuring Water Quality Purity Tester TDS Meter 15%Off

$3.79 $3.88

127 sold

Categories: Tools, Measurement & Analysis Instruments

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SM1 Single/TRM1 Triple LCD Display Online TDS Meter Monitor Water Quality Purity Tester Temp Aquarium Laboratory Water PH Meter SM1 Single/TRM1 Triple LCD Display Online TDS Meter Monitor Water Quality Purity Tester Temp Aquarium Laboratory Water PH Meter

SM1 Single/TRM1 Triple LCD Display Online TDS Meter Monitor Water Quality Purity Tester Temp Aquarium Laboratory Water PH Meter

$135.72 $135.72

6 sold

Categories: Tools, Measurement & Analysis Instruments

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8% off
7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter 7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter

7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter

$6.98 $7.61

52 sold

Categories: Tools, Measurement & Analysis Instruments

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3% off
4 in 1 PH Meter Digital PH/TDS/EC/Temperature Drinking Water Quality Analyzer Tester For Swimming Pool Aquarium Drinking Water 4 in 1 PH Meter Digital PH/TDS/EC/Temperature Drinking Water Quality Analyzer Tester For Swimming Pool Aquarium Drinking Water

4 in 1 PH Meter Digital PH/TDS/EC/Temperature Drinking Water Quality Analyzer Tester For Swimming Pool Aquarium Drinking Water

$17.03 $17.70

2 sold

Categories: Tools, Measurement & Analysis Instruments

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21% off
3 In1 TDS EC Meter Temperature Tester Pen Digital Water Quality DetectionTester For Water Purity TEMP PPM Tester Swimming Pool 3 In1 TDS EC Meter Temperature Tester Pen Digital Water Quality DetectionTester For Water Purity TEMP PPM Tester Swimming Pool

3 In1 TDS EC Meter Temperature Tester Pen Digital Water Quality DetectionTester For Water Purity TEMP PPM Tester Swimming Pool

$0.92 $1.16

14 sold

Categories: Tools, Measurement & Analysis Instruments

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2% off
110V 220V TDS Electrolyser Water Quality Detector Test Pen Pure Water Tester Detection Tool for Household Swimming Pool US EU 110V 220V TDS Electrolyser Water Quality Detector Test Pen Pure Water Tester Detection Tool for Household Swimming Pool US EU

110V 220V TDS Electrolyser Water Quality Detector Test Pen Pure Water Tester Detection Tool for Household Swimming Pool US EU

$40.87 $41.95

13 sold

Categories: Tools, Measurement & Analysis Instruments

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7% off
Digital Water Quality Tester Dual Probe TDS EC Meter Range PPM Tester Total Dissolved Solids Monitor For Fish Tank Aquarium Digital Water Quality Tester Dual Probe TDS EC Meter Range PPM Tester Total Dissolved Solids Monitor For Fish Tank Aquarium

Digital Water Quality Tester Dual Probe TDS EC Meter Range PPM Tester Total Dissolved Solids Monitor For Fish Tank Aquarium

$19.15 $20.65

3 sold

Categories: Tools, Measurement & Analysis Instruments

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51% off
EC-3185 Waterproof Soil Meter EC/TDS/CF Soil Tester with Probe for Greenhouse Cultivation, Horticulture Cultivation, Laboratory EC-3185 Waterproof Soil Meter EC/TDS/CF Soil Tester with Probe for Greenhouse Cultivation, Horticulture Cultivation, Laboratory

EC-3185 Waterproof Soil Meter EC/TDS/CF Soil Tester with Probe for Greenhouse Cultivation, Horticulture Cultivation, Laboratory

$27.34 $55.80

4 sold

Categories: Tools, Measurement & Analysis Instruments

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49% off
NEW Online PH-110 Digital Industrial Ph /ORP Meter Sensor Electrode Ph Probe for Sewage Detection,Dosing Control NEW Online PH-110 Digital Industrial Ph /ORP Meter Sensor Electrode Ph Probe for Sewage Detection,Dosing Control

NEW Online PH-110 Digital Industrial Ph /ORP Meter Sensor Electrode Ph Probe for Sewage Detection,Dosing Control

$20.93 $41.03

15 sold

Categories: Tools, Measurement & Analysis Instruments

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4% off
Bluetooth Soil Tester EC TDS CF Temperature Meter Moisture Humidity Sensor Plant Monitor Detector for Garden Greenhouse Bluetooth Soil Tester EC TDS CF Temperature Meter Moisture Humidity Sensor Plant Monitor Detector for Garden Greenhouse

Bluetooth Soil Tester EC TDS CF Temperature Meter Moisture Humidity Sensor Plant Monitor Detector for Garden Greenhouse

$26.87 $28.05

3 sold

Categories: Tools, Measurement & Analysis Instruments

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30% off
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,ORP 222mV PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,ORP 222mV

PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,ORP 222mV

$4.05 $5.78

1 sold

Categories: Tools, Measurement & Analysis Instruments

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50% off
0-9999ppm 3in1 PH Tester Water Quality Tester TDS/EC/TEMP With Backlight Water Quality Testing Conductivity Water Quality Tester 0-9999ppm 3in1 PH Tester Water Quality Tester TDS/EC/TEMP With Backlight Water Quality Testing Conductivity Water Quality Tester

0-9999ppm 3in1 PH Tester Water Quality Tester TDS/EC/TEMP With Backlight Water Quality Testing Conductivity Water Quality Tester

$6.08 $12.16

6 sold

Categories: Tools, Measurement & Analysis Instruments

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50% off
0-9990ppm Water Quality Tester Precise Digital Pool Water Tester Drinking Water Tester Portable Hard Water Tester Aquarium Water 0-9990ppm Water Quality Tester Precise Digital Pool Water Tester Drinking Water Tester Portable Hard Water Tester Aquarium Water

0-9990ppm Water Quality Tester Precise Digital Pool Water Tester Drinking Water Tester Portable Hard Water Tester Aquarium Water

$7.70 $15.41

5 sold

Categories: Tools, Measurement & Analysis Instruments

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6% off
8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium 8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium

8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium

$20.23 $21.75

8 sold

Categories: Tools, Measurement & Analysis Instruments

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21% off
Rechargeable 5 In 1 Salinity Meter PH Water Quality Tester Digital EC TDS TEMP Monitor For Aquarium, Hydroponics, Pool Rechargeable 5 In 1 Salinity Meter PH Water Quality Tester Digital EC TDS TEMP Monitor For Aquarium, Hydroponics, Pool

Rechargeable 5 In 1 Salinity Meter PH Water Quality Tester Digital EC TDS TEMP Monitor For Aquarium, Hydroponics, Pool

$27.07 $34.26

Categories: Tools, Measurement & Analysis Instruments

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53% off
Professional Hydroponic Meter 4 In 1 PH EC TDS TEMP Tester Monitor Long Probes For Nutrient Solutions, Aquarium Professional Hydroponic Meter 4 In 1 PH EC TDS TEMP Tester Monitor Long Probes For Nutrient Solutions, Aquarium

Professional Hydroponic Meter 4 In 1 PH EC TDS TEMP Tester Monitor Long Probes For Nutrient Solutions, Aquarium

$22.23 $47.30

1 sold

Categories: Tools, Measurement & Analysis Instruments

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6% off
Professional 4 IN 1 TDS PH EC Temp Meter PH Tester Water Quality Testing Temperature Monitor Pen Acid Base Measurement Tools Professional 4 IN 1 TDS PH EC Temp Meter PH Tester Water Quality Testing Temperature Monitor Pen Acid Base Measurement Tools

Professional 4 IN 1 TDS PH EC Temp Meter PH Tester Water Quality Testing Temperature Monitor Pen Acid Base Measurement Tools

$13.43 $14.36

19 sold

Categories: Tools, Measurement & Analysis Instruments

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24% off
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions

PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions

$5.36 $7.05

2 sold

Categories: Tools, Measurement & Analysis Instruments

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56% off
TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter

TDS Meter Digital Water Tester High Accuracy Digital 0-14 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter

$34.80 $79.10

8943 sold

Categories: Tools, Measurement & Analysis Instruments

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35% off
RM-220(S) Resistivity Meter EC Sensor Electronic Conductivity Meter High Purity Water Mixed Bed EDI Equipment TDS Tester RM-220(S) Resistivity Meter EC Sensor Electronic Conductivity Meter High Purity Water Mixed Bed EDI Equipment TDS Tester

RM-220(S) Resistivity Meter EC Sensor Electronic Conductivity Meter High Purity Water Mixed Bed EDI Equipment TDS Tester

$16.25 $25.00

5 sold

Categories: Tools, Measurement & Analysis Instruments

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4% off
4-in-1 Smart Soil Tester EC TDS CF Temp Detector High Accuracy Bluetooth APP Control Conductivity Meter for Gardening Farming 4-in-1 Smart Soil Tester EC TDS CF Temp Detector High Accuracy Bluetooth APP Control Conductivity Meter for Gardening Farming

4-in-1 Smart Soil Tester EC TDS CF Temp Detector High Accuracy Bluetooth APP Control Conductivity Meter for Gardening Farming

$24.49 $25.53

5 sold

Categories: Tools, Measurement & Analysis Instruments

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30% off
PH EC ORP TDS Calibration Buffer Liquid 4.00/6.86/9.18 Solution 35ppt 84us/cm 1413us/cm 1382ppm 222mv Standard Solution Kit Set PH EC ORP TDS Calibration Buffer Liquid 4.00/6.86/9.18 Solution 35ppt 84us/cm 1413us/cm 1382ppm 222mv Standard Solution Kit Set

PH EC ORP TDS Calibration Buffer Liquid 4.00/6.86/9.18 Solution 35ppt 84us/cm 1413us/cm 1382ppm 222mv Standard Solution Kit Set

$9.00 $12.86

8 sold

Categories: Tools, Measurement & Analysis Instruments

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20% off
3 in 1 PH Meter Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Quality Tester PH Meter Tester for Aquarium Swimming Pool 3 in 1 PH Meter Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Quality Tester PH Meter Tester for Aquarium Swimming Pool

3 in 1 PH Meter Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Quality Tester PH Meter Tester for Aquarium Swimming Pool

$1.66 $2.07

2 sold

Categories: Tools, Measurement & Analysis Instruments

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6% off
5 in 1 EC TDS Salinity Temperature pH Meter Water Quality Tester for Food Beverages Salt Content Aquarium Seawater ATC Meter 5 in 1 EC TDS Salinity Temperature pH Meter Water Quality Tester for Food Beverages Salt Content Aquarium Seawater ATC Meter

5 in 1 EC TDS Salinity Temperature pH Meter Water Quality Tester for Food Beverages Salt Content Aquarium Seawater ATC Meter

$15.91 $16.95

31 sold

Categories: Tools, Measurement & Analysis Instruments

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