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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~~

4 sold

32% off

Yieryi Digital PH WiFi ORP Redox 2 In 1 Controller Monitor Output Power Control Electrode Probe BNC for Aquarium

$18.22~~$26.80~~

4 sold

2% off

JPB-70A Portable Digital Pen Dissolved Oxygen Meter Dissolved Oxygen Meter Water Quality Tester Dissolved Oxygen Detector

$74.99~~$76.89~~

5 sold

10 Pcs PH Meter 5 in 1 TDS EC PH Salinity Temperature Water Quality Monitor Tester for Spa Pools Aquariums Hydroponic

$120.00~~$120.00~~

1 sold

11% off

High Accuracy Soil PH Meter 0.00~14.00pH Digital Temp Acidity Soil Tester Sensor Analyzer for Outdoor Planting Garden Farmland

$24.80~~$27.99~~

55 sold

54% off

$yieryi 0-80 Alcohol Refractometer Concentration Detector Of Liquor Alcohol 0-80% v/v$ $yieryi 0-80 Alcohol Refractometer Concentration Detector Of Liquor Alcohol 0-80% v/v$

yieryi 0-80 Alcohol Refractometer Concentration Detector Of Liquor Alcohol 0-80% v/v

$12.88~~$28.00~~

3 sold

Yieryi High Accuracy Soil Tester 0.00-10.00mS/cm EC Meter with ATC Conductivity Nutrient Analyzer for Flower Gardening Farming

$22.33~~$22.33~~

1 sold

40% off

2PCS/Set Portable Digital Temperature TDS EC pH Meter Test Pen LCD Display Litmus Tester for Water Quality Purity Detector 5 in1

$14.50~~$24.17~~

1 sold

3% off

Professional DO9100 Dissolved Oxygen Meter Digital DO Test Water Quality Analyzer for Seawater Freshwater Fish Tank Aquaculture

$55.89~~$57.79~~

30 sold

38% off

WiFi PH Meter Temp TDS(ppm) EC ORP Water Tester Tuya APP Smart Monitor Digital Analyzer for Aquariums Hydroponics Swimming Pool

$50.37~~$81.25~~

31 sold

24% off

$Hot-selling Emulsion Refractometer 0-15% Rust-proof Cutting Tester Mine Stand Emulsified Oil Refractometer MDT Detector$ $Hot-selling Emulsion Refractometer 0-15% Rust-proof Cutting Tester Mine Stand Emulsified Oil Refractometer MDT Detector$

Hot-selling Emulsion Refractometer 0-15% Rust-proof Cutting Tester Mine Stand Emulsified Oil Refractometer MDT Detector

$8.77~~$11.59~~

51 sold

45% off

Yieryi 3 in 1 Multi-Parameter PH Monitor Water Quality Tester PH-983 Pen Type pH EC TEMP Acidometer Drink Water Quality Analyser

$15.41~~$28.02~~

1 sold

16% off

$Hot New Shockproof Packaging Hand-held 0-80% Alcohol Refractometer Alcohol Concentration Meter Liquor Alcohol Tester$ $Hot New Shockproof Packaging Hand-held 0-80% Alcohol Refractometer Alcohol Concentration Meter Liquor Alcohol Tester$

Hot New Shockproof Packaging Hand-held 0-80% Alcohol Refractometer Alcohol Concentration Meter Liquor Alcohol Tester

$9.94~~$11.84~~

186 sold

43% off

$Yieryi Portable Refractometer Design For Liquor Alcohol Content Tester 0-80% V/V ATC Refractometer With The Retail Box$ $Yieryi Portable Refractometer Design For Liquor Alcohol Content Tester 0-80% V/V ATC Refractometer With The Retail Box$

Yieryi Portable Refractometer Design For Liquor Alcohol Content Tester 0-80% V/V ATC Refractometer With The Retail Box

$13.96~~$24.50~~

2 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~~

3 sold

43% off

Yieryi Smart Bluetooth H2 Temp Meter Hydrogen Rich Water Hydrogen Ion Concentration Monitor Tester for Pool Spa Drinking Water

$21.27~~$37.32~~

2 sold

54% off

yieryi Pen Type PH Electrode Sensor BNC Connector Probe Pool Water Factory Industry Experiment Laboratory pH Composite Electrode

$9.60~~$20.88~~

22 sold

68% off

Yieryi EC/TEMP Soil Tester 0.00-10.00 MS/cm Hand Digital Garden Meter Soil Tester Tools Potted Plants Gardening Agriculture Farm

$14.88~~$46.60~~

165 sold

41% off

100pcs/set PH Test Meter Measure Calibration Solution PH Buffer Powder 4.01+6.86+7.0+10.01+9.18 Calibration Point free shipping

$14.45~~$24.50~~

4 sold

41% off

$Yieryi Methanol Freezing Point Refractometer Car Automotive Glass Water Freezing Point Meter -50℃~0℃ High Precision Tester Tools$ $Yieryi Methanol Freezing Point Refractometer Car Automotive Glass Water Freezing Point Meter -50℃~0℃ High Precision Tester Tools$

Yieryi Methanol Freezing Point Refractometer Car Automotive Glass Water Freezing Point Meter -50℃~0℃ High Precision Tester Tools

$11.71~~$19.85~~

14 sold

7% off

Yieryi Soil Temp and Humidity Meter for Garden Smart Bluetooth Soil Moisture Test Detector for Farm Orchards Potted Plants Farm

$17.70~~$19.14~~

1 sold

34% off

$New Shockproof Package Portable 0-20% Sugar Refractometer Fruit Sugar Meter Sugar Concentration Meter and ATC$ $New Shockproof Package Portable 0-20% Sugar Refractometer Fruit Sugar Meter Sugar Concentration Meter and ATC$

New Shockproof Package Portable 0-20% Sugar Refractometer Fruit Sugar Meter Sugar Concentration Meter and ATC

$12.51~~$18.95~~

3 sold

PH Meter Calibration Solution, PH Electrode Filling Glass Buffer, TPH01131 1 pcs of 30 ml, Disposable Liquid

$24.67~~$24.67~~

40% off

6 IN 1 Soil Meter Digital Ph Tester EC/Light/Moisture/Fertility Tester Thermometer Removable Panel for Garden cultivation

$27.42~~$45.70~~

5 sold

40% 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

$7.72~~$12.86~~

8 sold

13% off

Digital 6 in 1 Soil PH Meter Fertility Soil Moisture Sunlight Ambient Humidity Temp Tester Monitor Detector Garden Soli Analyzer

$12.43~~$14.33~~

552 sold

TK100W High-precision Professional Wood Sawdust Powder Hay Bale Peat Moisture Meter Hygrometer

$49.20~~$49.20~~

27 sold

8% off

$Yieryi New Sugar Refractometer ATC 0-10% Brix Handheld Sugar Meter Sugar Content Testing Equipment for Fruit, Food and Beverage$ $Yieryi New Sugar Refractometer ATC 0-10% Brix Handheld Sugar Meter Sugar Content Testing Equipment for Fruit, Food and Beverage$

Yieryi New Sugar Refractometer ATC 0-10% Brix Handheld Sugar Meter Sugar Content Testing Equipment for Fruit, Food and Beverage

$10.28~~$11.19~~

13 sold

9% off

Replacement PH Meter Electrode Probe Controller BNC Connector Sensor with Buffer Powder 100cm for Aquarium Hydroponic Laboratory

$8.59~~$9.52~~

60 sold

Soil Moisture Tester PH Meter Acidity Humidity Tester 3~8ph Hygrometer Metal Sensor Probe for Planting Garden Orchards Tool

$11.47~~$11.47~~

1 sold

50% off

$0-40% Brix 0-25% Alcohol Grapes Wine Refractometer ATC Handheld Concentration Meter Fruit Sugar Content Tester Measurement$ $0-40% Brix 0-25% Alcohol Grapes Wine Refractometer ATC Handheld Concentration Meter Fruit Sugar Content Tester Measurement$

0-40% Brix 0-25% Alcohol Grapes Wine Refractometer ATC Handheld Concentration Meter Fruit Sugar Content Tester Measurement

$10.25~~$20.50~~

12 sold

54% off

$Yieryi Digital 0-55% Brix Refractometer ±0.2% Precision Brix Meter Sugar Content Tester for Fruit Juice Wine Beer Food Beverage$ $Yieryi Digital 0-55% Brix Refractometer ±0.2% Precision Brix Meter Sugar Content Tester for Fruit Juice Wine Beer Food Beverage$

Yieryi Digital 0-55% Brix Refractometer ±0.2% Precision Brix Meter Sugar Content Tester for Fruit Juice Wine Beer Food Beverage

$34.71~~$75.45~~

3 sold

55% off

Mini Size Soil Moisture Meter Humidity Tester Hygrometer Metal Sensor Water Test Analyzer Instrument for Garden Plant Farm Tool

$2.48~~$5.52~~

3% off

Yieryi WiFi Tuya Smart PH ORP TDS EC SALT S. G TEMP CF Monitor Meter Online Aquarium Water Quality Tester Data Logger Controller

$56.11~~$58.01~~

189 sold

50% off

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

$10.25~~$20.60~~

10 sold

60% off

$3 in 1 Honey Refractometer 58~90% Brix Sugar Meter 38~43° Bee Baume 10-33% Honey Moisture Tester Beekeeping Tool with ATC$ $3 in 1 Honey Refractometer 58~90% Brix Sugar Meter 38~43° Bee Baume 10-33% Honey Moisture Tester Beekeeping Tool with ATC$

3 in 1 Honey Refractometer 58~90% Brix Sugar Meter 38~43° Bee Baume 10-33% Honey Moisture Tester Beekeeping Tool with ATC

$10.80~~$27.00~~

4 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

4 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

32% off

Yieryi Digital PH WiFi ORP Redox 2 In 1 Controller Monitor Output Power Control Electrode Probe BNC for Aquarium

$18.22 $26.80

4 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

2% off

JPB-70A Portable Digital Pen Dissolved Oxygen Meter Dissolved Oxygen Meter Water Quality Tester Dissolved Oxygen Detector

$74.99 $76.89

5 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

10 Pcs PH Meter 5 in 1 TDS EC PH Salinity Temperature Water Quality Monitor Tester for Spa Pools Aquariums Hydroponic

$120.00 $120.00

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

11% off

High Accuracy Soil PH Meter 0.00~14.00pH Digital Temp Acidity Soil Tester Sensor Analyzer for Outdoor Planting Garden Farmland

$24.80 $27.99

55 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

54% off

$yieryi 0-80 Alcohol Refractometer Concentration Detector Of Liquor Alcohol 0-80% v/v$ $yieryi 0-80 Alcohol Refractometer Concentration Detector Of Liquor Alcohol 0-80% v/v$