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45% off

Tuya 6 in 1 PH Meter Salinity S.G. EC ppm Temp Nutrient Tester Water Quality Testing APP Control for Hydroponics Plants Aquarium

$19.88~~$36.14~~

3 sold

7% off

$Portable Salinity Refractometer Salinity 0-10% Salt Meter Tester Hand-Held 1.000-1.070Sg Seawater Salinometer For Aquarium$ $Portable Salinity Refractometer Salinity 0-10% Salt Meter Tester Hand-Held 1.000-1.070Sg Seawater Salinometer For Aquarium$

Portable Salinity Refractometer Salinity 0-10% Salt Meter Tester Hand-Held 1.000-1.070Sg Seawater Salinometer For Aquarium

$84.42~~$91.42~~

4% off

ONLINE ROUND SOIL 8 IN 1 LORA LORAWAN RS485 MOISTURE TEMPE EC PH SALINITY NPK SENSOR

$1963.01~~$2044.80~~

9% off

Soil PH Meter Tester Soil Tester PH Moisture meter Temperature Sunlight Intensity measurement Analysis Soil Acidity Test 4 in 1

$32.81~~$36.41~~

1868 sold

54% off

AZ86031 Dissolved Oxygen Tester Multifunctional PH Meter Dissolved Oxygen Conductivity Salinity Water Quality Tester

$377.20~~$820.00~~

2 sold

45% off

10 in 1 Water Quality Monitor PH/EC/TDS/ORP/H2/Fertile/Salinity/S.G/Resistivity/Temp Multifunction Tester for Aquariums Pools

$22.91~~$41.65~~

378 sold

36% off

$Freezing Point Meter Refractometer Car Urea30~35%/Antifreeze-50-0℃/Glass-40-0℃/Battery1.1-1.4 Measuring Concentration Detector$ $Freezing Point Meter Refractometer Car Urea30~35%/Antifreeze-50-0℃/Glass-40-0℃/Battery1.1-1.4 Measuring Concentration Detector$

Freezing Point Meter Refractometer Car Urea30~35%/Antifreeze-50-0℃/Glass-40-0℃/Battery1.1-1.4 Measuring Concentration Detector

$13.43~~$20.99~~

45% off

TDS Digital Salinity Tester Meter for Salt Water Pool & Fish Pond Testing Tools Portable Household Water Test Pen

$2.82~~$5.12~~

12 sold

17% 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

$6.26~~$7.60~~

39 sold

4% off

$Sea Water Salt Concentration Tester Salinity Refractometer 0 to Salinometer A0KF$ $Sea Water Salt Concentration Tester Salinity Refractometer 0 to Salinometer A0KF$

Sea Water Salt Concentration Tester Salinity Refractometer 0 to Salinometer A0KF

$11.98~~$12.48~~

1 sold

40% off

1PC White Digital Water Quality Tester TDS EC Meter Range 0 to 9999 Multifunctional Water Purity Temperature TEMP PPM Tester

$1.35~~$2.25~~

19 sold

4% off

$Handheld Salinity Refractometer for Aquarium 0 to 100% Salinometer Portable SeaWater Salt Concentration Tester Meter ATC$ $Handheld Salinity Refractometer for Aquarium 0 to 100% Salinometer Portable SeaWater Salt Concentration Tester Meter ATC$

Handheld Salinity Refractometer for Aquarium 0 to 100% Salinometer Portable SeaWater Salt Concentration Tester Meter ATC

$15.76~~$16.43~~

9% off

Rechargeable Digital pH Meter 5-in-1 pH/TDS/EC/Salinity/Temp with Simultaneous Data Display for Hydroponics, Aquariums, Lab

$17.53~~$19.45~~

8 sold

5-in-1 Water Test Pen, PH/TDS/SALT/EC/TEMP High Precision Probe Pool PH Diet Tester for Koi Ponds, Fish Tanks, Food Salinity

$36.36~~$36.36~~

3% off

1pcs 25ML PH Buffer Calibration Solutio Precise Conductivity Salinity Calibration Solution PH Meter Buffering Agent 1382ppm

$28.81~~$29.94~~

16 sold

$Food Industry Use Handheld Brine Refractometer Salinity Tester 28% Sugar Tester Brix 32% Concentration Meter$ $Food Industry Use Handheld Brine Refractometer Salinity Tester 28% Sugar Tester Brix 32% Concentration Meter$

Food Industry Use Handheld Brine Refractometer Salinity Tester 28% Sugar Tester Brix 32% Concentration Meter

$40.00~~$40.00~~

1 sold

5% off

Yieryi New EC-7701 Soil EC Temp Meter 0.0-10.00 mS/cm Digital Garden Plants Soil Salinity Test Soil Conductivity Tester for Farm

$19.20~~$20.36~~

4 sold

9% off

$Handheld Salinity Refractometer Sea Salt Water MeterConcentration 1.000-1.070SG Aquarium Mariculture Breeding Gravimeter 0~100%$ $Handheld Salinity Refractometer Sea Salt Water MeterConcentration 1.000-1.070SG Aquarium Mariculture Breeding Gravimeter 0~100%$

Handheld Salinity Refractometer Sea Salt Water MeterConcentration 1.000-1.070SG Aquarium Mariculture Breeding Gravimeter 0~100%

$8.79~~$9.67~~

34 sold

45% off

Bluetooth WIFI 5 in 1 PH TDS EC Salinity SG Temperature Meter Water Quality Tester for Drinking Water Aquariums Pool PH Meter

$14.79~~$26.89~~

5 sold

12% off

Tuya WiFi 5 in1 Water Quality Tester Online Monitor TDS EC S.G Salinity Temperature Test PH Meter Hydroponics Aquarium Pool 220V

$36.53~~$41.72~~

28 sold

6% off

$Salinity Meter Refractometer Tri-Scale ATC 0-100 ppt Salinity Range 0 to 10% Brix For Seawater Saltwater Marine Coral Fish Tank$ $Salinity Meter Refractometer Tri-Scale ATC 0-100 ppt Salinity Range 0 to 10% Brix For Seawater Saltwater Marine Coral Fish Tank$

Salinity Meter Refractometer Tri-Scale ATC 0-100 ppt Salinity Range 0 to 10% Brix For Seawater Saltwater Marine Coral Fish Tank

$16.52~~$17.71~~

4 sold

30% off

yieryi Salinity-8425 Portable Salinity/Temp Meter online with Replaceable probe for aquarium，swimming pool， lab，drinking water

$40.60~~$58.00~~

1 sold

35% off

$Salinity Refractometer Meter Water Reader Marine 0~10% Salt Aquarium Test Tester M04 dropship$ $Salinity Refractometer Meter Water Reader Marine 0~10% Salt Aquarium Test Tester M04 dropship$

Salinity Refractometer Meter Water Reader Marine 0~10% Salt Aquarium Test Tester M04 dropship

$4.36~~$6.71~~

14 sold

$Traditional Salinity Refractometer Dual Scale Portable Meter With ATC For Seawater Salt Sea Marine Aquarium Reef Tank$ $Traditional Salinity Refractometer Dual Scale Portable Meter With ATC For Seawater Salt Sea Marine Aquarium Reef Tank$

Traditional Salinity Refractometer Dual Scale Portable Meter With ATC For Seawater Salt Sea Marine Aquarium Reef Tank

$11.12~~$11.12~~

53% off

$Retail Box 2 in 1 0-32%Brix & 0-28% Salinity Refractometer w/ATC 2 scale Measure Sodium Chloride in Food Salt Fruits$ $Retail Box 2 in 1 0-32%Brix & 0-28% Salinity Refractometer w/ATC 2 scale Measure Sodium Chloride in Food Salt Fruits$

Retail Box 2 in 1 0-32%Brix & 0-28% Salinity Refractometer w/ATC 2 scale Measure Sodium Chloride in Food Salt Fruits

$11.20~~$23.83~~

1 sold

5% off

$Brix Refractometer 2 in 1 Brix & Salinity Refractometer ATC 0-32% Brix & 0-28% Salinity Measure Sodium Chloride in Food Salt$ $Brix Refractometer 2 in 1 Brix & Salinity Refractometer ATC 0-32% Brix & 0-28% Salinity Measure Sodium Chloride in Food Salt$

Brix Refractometer 2 in 1 Brix & Salinity Refractometer ATC 0-32% Brix & 0-28% Salinity Measure Sodium Chloride in Food Salt

$9.46~~$9.99~~

1 sold

8% off

$Salinity Refractometer 0-10% 1.000-1.070SG Optical Salometer For Seawater Marine Aquaculture Food Salt Tester For Aquarium$ $Salinity Refractometer 0-10% 1.000-1.070SG Optical Salometer For Seawater Marine Aquaculture Food Salt Tester For Aquarium$

Salinity Refractometer 0-10% 1.000-1.070SG Optical Salometer For Seawater Marine Aquaculture Food Salt Tester For Aquarium

$9.96~~$10.86~~

12 sold

54% off

Yieryi Smart 6 in 1 Dissolved Oxygen Meter Aquarium PH DO SALT EC TDS Swimming Hydroponics Water Quality Analysis Tester Monitor

$124.55~~$271.85~~

8 sold

56% off

Digital Salinity Meter TDS/EC/Temp/Salt Water Quality Tester High Accuracy Salinometer for Aquariums Swimming Pool Spa Koi Pond

$14.88~~$33.81~~

5 sold

55% off

5 in 1 TDS EC PH Salinity Temperature Meter Digital Drinking Water Quality Monitor Tester for Pool Aquarium Analysis Instruments

$39.82~~$88.50~~

1 sold

Professional 4-in-1 Salinity TDS Meter, Temperature, SG, Saltwater Water Quality Tester for Testing Drinking, Aquaculture

$12.00~~$12.00~~

3 sold

8% off

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

$4.84~~$5.29~~

12 sold

12% off

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

$14.78~~$16.94~~

24 sold

12% off

New 7 in 1 Digital Salinity Tester ORP PH TDS EC SG TEMP Meter ORP LCD Monitor Water Quality Detector for Pool Aquarium

$18.56~~$21.23~~

13 sold

50% off

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

$14.37~~$28.74~~

82 sold

43% off

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

$11.65~~$20.60~~

9 sold

45% off

Tuya 6 in 1 PH Meter Salinity S.G. EC ppm Temp Nutrient Tester Water Quality Testing APP Control for Hydroponics Plants Aquarium

$19.88 $36.14

3 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

7% off

Portable Salinity Refractometer Salinity 0-10% Salt Meter Tester Hand-Held 1.000-1.070Sg Seawater Salinometer For Aquarium

$84.42 $91.42

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

ONLINE ROUND SOIL 8 IN 1 LORA LORAWAN RS485 MOISTURE TEMPE EC PH SALINITY NPK SENSOR

$1963.01 $2044.80

Categories: Tools, Measurement & Analysis Instruments

Buy Now

9% off

Soil PH Meter Tester Soil Tester PH Moisture meter Temperature Sunlight Intensity measurement Analysis Soil Acidity Test 4 in 1

$32.81 $36.41

1868 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

54% off

AZ86031 Dissolved Oxygen Tester Multifunctional PH Meter Dissolved Oxygen Conductivity Salinity Water Quality Tester

$377.20 $820.00

2 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

45% off

10 in 1 Water Quality Monitor PH/EC/TDS/ORP/H2/Fertile/Salinity/S.G/Resistivity/Temp Multifunction Tester for Aquariums Pools

$22.91 $41.65

378 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

36% off

Freezing Point Meter Refractometer Car Urea30~35%/Antifreeze-50-0℃/Glass-40-0℃/Battery1.1-1.4 Measuring Concentration Detector

$13.43 $20.99

Categories: Tools, Measurement & Analysis Instruments

Buy Now

45% off

TDS Digital Salinity Tester Meter for Salt Water Pool & Fish Pond Testing Tools Portable Household Water Test Pen

$2.82 $5.12

12 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

17% 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

$6.26 $7.60

39 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

$Sea Water Salt Concentration Tester Salinity Refractometer 0 to Salinometer A0KF$ $Sea Water Salt Concentration Tester Salinity Refractometer 0 to Salinometer A0KF$

Sea Water Salt Concentration Tester Salinity Refractometer 0 to Salinometer A0KF

$11.98 $12.48

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

40% off

1PC White Digital Water Quality Tester TDS EC Meter Range 0 to 9999 Multifunctional Water Purity Temperature TEMP PPM Tester

$1.35 $2.25

19 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

Handheld Salinity Refractometer for Aquarium 0 to 100% Salinometer Portable SeaWater Salt Concentration Tester Meter ATC

$15.76 $16.43

Categories: Tools, Measurement & Analysis Instruments

Buy Now

9% off

Rechargeable Digital pH Meter 5-in-1 pH/TDS/EC/Salinity/Temp with Simultaneous Data Display for Hydroponics, Aquariums, Lab

$17.53 $19.45

8 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

5-in-1 Water Test Pen, PH/TDS/SALT/EC/TEMP High Precision Probe Pool PH Diet Tester for Koi Ponds, Fish Tanks, Food Salinity

$36.36 $36.36

Categories: Tools, Measurement & Analysis Instruments

Buy Now

3% off

1pcs 25ML PH Buffer Calibration Solutio Precise Conductivity Salinity Calibration Solution PH Meter Buffering Agent 1382ppm

$28.81 $29.94

16 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

Food Industry Use Handheld Brine Refractometer Salinity Tester 28% Sugar Tester Brix 32% Concentration Meter

$40.00 $40.00

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

5% off

Yieryi New EC-7701 Soil EC Temp Meter 0.0-10.00 mS/cm Digital Garden Plants Soil Salinity Test Soil Conductivity Tester for Farm

$19.20 $20.36

4 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

9% off

Handheld Salinity Refractometer Sea Salt Water MeterConcentration 1.000-1.070SG Aquarium Mariculture Breeding Gravimeter 0~100%

$8.79 $9.67

34 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

45% off

Bluetooth WIFI 5 in 1 PH TDS EC Salinity SG Temperature Meter Water Quality Tester for Drinking Water Aquariums Pool PH Meter

$14.79 $26.89

5 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

12% off

Tuya WiFi 5 in1 Water Quality Tester Online Monitor TDS EC S.G Salinity Temperature Test PH Meter Hydroponics Aquarium Pool 220V

$36.53 $41.72

28 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

6% off

Salinity Meter Refractometer Tri-Scale ATC 0-100 ppt Salinity Range 0 to 10% Brix For Seawater Saltwater Marine Coral Fish Tank

$16.52 $17.71

4 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

30% off

yieryi Salinity-8425 Portable Salinity/Temp Meter online with Replaceable probe for aquarium，swimming pool， lab，drinking water

$40.60 $58.00

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

35% off

$Salinity Refractometer Meter Water Reader Marine 0~10% Salt Aquarium Test Tester M04 dropship$ $Salinity Refractometer Meter Water Reader Marine 0~10% Salt Aquarium Test Tester M04 dropship$