Bluelab METCOMPLUS Combo Meter PLUS for pH, Temperature, and Conductivity in Water and Soil with Easy Calibration, Digital Nutrient (TDS) Testing Kit for Hydroponic System and Indoor Plant Grow

$159.5

Bluelab METCOM Combo Meter for pH, Temperature, Conductivity (Nutrient) in Water with Easy Calibration, Digital TDS Tester for Hydroponic System and Indoor Plants

$29.9

Bluelab METPULSE Pulse Meter Water 3-in-1 Moisture/Nutrient (TDS)/Temperature Test Kit for Garden Soil, Coco, and Solution, Ester for Hydroponic System and Indoor Plant Grow, Clear

$16.9

Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White

$37.99

bluelab pH Pen-Digital pH Tester - Reliable & Accurate for High Yield Crops - Hand-Held Meter - Measures pH & Temperature in Solutions and Soil Solutions - Optimize Plant Health & Performance,White

$6.99

Bluelab CAREKITPH pH Probe Care Kit with Calibration Supplies, Storage Solution, and Brush, Used for Pen, Meter, Monitor, Controller and Tools for Hydroponic System and Indoor Plant Grow, Clear

$16.9

4-in-1 Soil Moisture Meter Digital Plant Temperature/Soil Moisture/PH Meter/Sunlight Intensity/Environment Humidity Backlight LCD display Soil Test Meter for Gardening, Farming and Outdoor Plants

$11.04

UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic Growing Tent Indoor Plant Grow

$22.79

Bluelab PROBPH pH Probe for Water, Replacement Electrode for Meter, Monitor, and Controller with Easy Calibration, Tool for Hydroponic System and Indoor Plant Grow

$88.39

CANNABMALL PH Meter, TDS PPM Meter and 3 in 1 Soil Moisture Meter Combo, High Accuracy Lab PH/EC Tester Digital Kit [Upgraded] for Home Water, Hydroponics, Plants Garden Soil and Aquarium PH Pen

$22.79

RCYAGO PH Meter, 5 in 1 PH/TDS/EC/Salinity/Temp Meter with ATC, 0.01 Resolution High Accuracy Water Testing for Drinking Water, Hydroponics, Seawater, Aquariums, Fish Tank and Swimming Pools

$10.79

Bluelab STSOL120 KCL Storage Solution 120ml pH Probe and Pen, Maintain Meters Used for Water, Soil, and Hydroponic System or Indoor Plant Grow White

$9.99

4 in 1 Digital pH Meter for Water, ±0.01 Resolution High Accuracy Tds Meter Digital Water Tester with ATC pH Tester, Water Tester for Drinking Water, Brewing, Hydroponics, Wine, Pool and Aquarium

$189.28

apine Soil Moisture Meter, Plants Moisture Meter, Plant Water Meter for Indoor/Outdoor Plants， Hydrometer for Plants（Green）

$6.59

Yewhick Digital pH Meter for Food, Food pH Tester with High Accuracy pH Probe for Sourdough and Bread, Food pH Meter for Canning, Meat, Cheese, Solid Samples and Water, 0.01 Resolution

$39.99

YINMIK pH EC Meter for Water Hydroponics, PPM Meter for Nutrients, Measure pH PPM Conductivity Temperature of Hydroponic Garden Water and Nutrient Solution, EC pH TDS Meter for Water, Aquarium, Pool

$42.99

Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow

$29.9

Digital pH Meter, pH Meter for Water, 0-14 pH Measurement Range pH Tester, 0.01 High Precision Water Quality Tester with ATC for Drinking Water Pool

$29.99

Bluelab Conductivity Pen Meter and Probe Care Kit for Conductivity-Water, Temperature and Nutrient Tester (CF, EC, PPM 500/700) with EC Solution and Cleaner for Hydroponics and Indoor Growing

$195.76

GISNPA Digital pH Meter for Food, 0.01 Resolution High Accuracy Food pH Tester with Backlit LCD Display and ATC for Meat, Bread, Canning, Brewing, Cheese, Solid Sampling, Soft Soil and Water

$11.99

LAWNFUL 2-In-1 Digital Soil Meter for Conductivity & Temperature, Professional Soil Themometer EC Meter, Soil Test Kit with LED Display for Gardening, Lawn, Indoor&Outdoor Plant, Potting, Farm (White)

$4.5

Sustee Aquameter, Set of 5, Plant Soil Moisture Sensor (Green, Small)

$15.99

PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

$22.99

5 in 1 TDS Meter PH Tester, 0.01 High Accuracy Digital PH Meter for Water, PH/TDS/EC/Salt/Temp Tester, PPM Meter Water Tester for Drinking Water, Hydroponics, Plants, Aquarium and Pool

$12.97

AC Infinity pH Meter PRO Kit, High Precision Digital pH Pen with ±0.01 pH Accuracy and Interchangeable Probe, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools

$19.99

YINMIK pH Meter, Digital pH Tester for Hydroponics, pH Temp Meter with Horizontal Display for Pool, Spa, Hot Tub, Indoor Plants, Koi Ponds, Drinking Water, Wine Beer Making, Aquarium, Aquaculture

$24.69

Soonkoda Digital Brix Refractometer with ATC 0-55% Brix Tester for Fruit,Juice,Drink,Beverages,Suger Content Test Measurement for Sugar Solutions Food,Brix Meter for Plants

$19.99

PmoYoKo Digital pH/TDS Meter with ATC pH Tester, 3 in 1 pH TDS Temp 0.01 Resolution High Accuracy pH Tester with LCD Backlit, TDS Meter pH Meter for Water, Wine, Pool, Hydroponics and Aquariums

$6.99

Suplong Plant Soil Moisture Meter, Precise Moisture Meter for Plants, Plant Moisture Meter for Indoor & Outdoor Plants, Garden, Farm (No Batteries Required)

$12.99

Bluelab pH 4.0 & 7.0 Calibration Solution Kit - pH Meter & pH Pen Calibration for Balanced Nutrient Solution NIST Certified | Hydroponics, Gardening & Growing Tents (500 ml/ 16.9 Fl Oz Each)

$8.99

GISNPA PH Meter, 5 in 1 pH/TDS/EC/Salinity/Temp Meter, Waterproof Pool Salt Tester, 0.01 Resolution High Accuracy Water Tester for Drinking Water, Hydroponics, Saltwater Pool, Aquarium, Koi Fish Pond

$91.96

PmoYoKo Digital pH/TDS Meter with ATC pH Tester, 3 in 1 0.01 Resolution High Accuracy pH Pen Tester for Water with LCD Backlit, Tds Meter pH Meter for Drinking Water, Wine, Pool and Aquariums

$10.99

GROWIT Soil Moisture Meter for Plants - Accurate & Reliable Plant Moisture Meter for House Plants, Gardening, Farming, Indoor and Outdoor Plants, No Batteries Required

$15.99

PH Meter, Digital PH Meter, PH Meter for Water, PH Tester 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range, PH Meter for Household Drinking Water, Aquarium, Swimming Pool, Spa

$17.19

Raintrip Soil Moisture Meter,Moisture Meter for Plants，Plant Water Meter,Great for Garden, Lawn, Farm, Indoor & Outdoor Use (No Battery Required)

$13.99

Soil Moisture Meter for House Plants, Plant Water Meter,Plant Moisture Meter for House Plants and Outdoor Plants, No Batteries Required (Green)

$22.99

JiocoVino Digital pH/TDS Meter for Water Quality, Waterproof Water Tester with Backlit Measurement 0-9990pm for Drinking Swimming Pool Hydroponic Aquarium (Milky White, 4 in 1 Water Tester)

$19.99

TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water (Blue)

$19.99

Classy Casita Soil Moisture Meter - Hygrometer Sensor Tool for Indoor and Outdoor Plants - Monitoring Water Levels in Soil House, Gardening, Farm, Lawn, Potted Care - No Batteries Required - White

$7.99

TDS Meter Digital Water Quality Tester for RO-RODI System Drinking Water,Aquariums, Hydroponics,0-9990 ppm Measuring Range,1 ppm Increments,2% Readout Accuracy（Green）

$40.02

WeAQUA TDS Meter AI-Supported Self-Calibrating for Accurate Results - Total Dissolved Solids Meter- Water Quality Meter Ideal for Drinking Water, Aquariums, Hydroponics, TDS and PPM Measurement

$119.99

GISNPA 7 in 1 pH/TDS/EC/ORP/S.G/Salinity/Temp Meter with ATC pH Tester, 0.01 Resolution High Accuracy Digital pH Meter, Water Tester for Drinking, Hydroponics, Swimming Pool and Aquarium

$29.95

XLUX Long Probe Deep Use Soil Moisture Meter Sensor, Water Monitor Indicator, Hygrometer for Outdoor Indoor Large Pot Plants, Flower, Gardening, Farming, 2 Pack

$9.99

2 in 1 Temperature pH Monitor Meter Tester Sensor Test Kit 0~14 pH Automatic Calibration BNC Electrode Probe for Hydroponic ph Aquarium Meter Water Lab Food Drinking Water pH of Saltwater/Seawater

$19.99

TDS Meter Digital Water Tester,WoEluone 3 in 1 TDS,Temperature and EC Meter,Accurate Ideal PPM Meter for Drinking Water, Aquariums,RO System and More

$34

YINMIK Digital pH Meter for Food, pH Probe for Sourdough and Bread Dough, Checking The pH of Fermenting Sausages and Salami, Waterproof pH Tester for Solid and Liquid Soft Soil Sample

$12.99

GU GREENERY : UNLIMITED Monitor Brass Soil Probe, Soil Sampler and Plant Moisture Meter, No Batteries Required, Root Aerator and Plant Water Monitor

$36.99

0-55% Brix Meter,High Precision Digital Brix Refractometer with ATC for Fruit,Juice,Beverages,Suger Content Measurement in Wine Making,Beer Brewing,Homebrew Kit

$14.99

SZHLUX Moisture Meter Water Monitor Soil Hygrometer Sensor Care, Lawn, Farm, Indoor & Outdoor. (Plant Gifts for Gardeners), 10.23inch, Green

$15.99

Digital pH and TDS Meter Kit - 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy - 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium (pH Meter Kit)

$89.54

Sonkir Soil Moisture Meter, 4-in-1 Soil Ph Meter, Soil Tester for Nutrients, Moisture, PH and Light, Soil Ph Test Kits for Plant, Great for Garden, Lawn, Indoor & Outdoor Use (No Battery Required)

$15.99

Gouevn Soil Moisture Meter, Plant Moisture Meter Indoor & Outdoor, Hygrometer Moisture Sensor Soil Test Kit Plant Water Meter for Garden, Farm, Lawn (No Battery Needed)

$7.99

YINMIK Digital pH Tester for Soil, Soil pH Test Kit for Indoor Potted Plants, Professional pH Meter for Soil and Water, Measuring Soil pH for Garden, Grass,Lawn, Greenhouse,Outdoor,Farming, Yard Use

$9.97

VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium, UL Certified

$29.99

CIHOPE pH and TDS Meter Combo, Professional pH Meter for Water pH Tester Digital pH Pen, 3-in-1 EC Temperature TDS Meter Digital Water Tester for Drinking Water, Hydroponics, Pool and Aquarium

$42.69

Bluelab CAREKITPHCON Probe Care Kit for pH and Conductivity (TDS) Probes and Pens with 4 Solutions and Cleaners, Cleaning Kit Tool for Hydroponic system and Indoor Plant Grow

$21.41

VIVOSUN Soil Tester, 3-in-1 Plant Moisture Meter Light and PH Tester for Home, Garden, Lawn, Farm, Indoor and Outdoor Use, Promote Plants Healthy Growth

$20.29

Landtouch Soil Moisture Meter, Moisture Meter for Plants, Moisture Meter for Soil, Garden, Farming, Potted Plants, Indoor & Outdoor, No Batteries Required

$19.68

Saltwater Meter Salinity Meter Digital Water Tester Hydrometer Ideal for Hydroponics Aquarium Fish Pond Aquaculture High Accuracy Pen Type Meter Specific Gravity(SG) Salinity and Temperature 3 in 1

$15.16

Saltwater Meter Salinity Meter Digital Water Tester Hydrometer Ideal for Hydroponics Aquarium Fish Pond Aquaculture High Accuracy Pen Type Meter Specific Gravity(SG) Salinity and Temperature 3 in 1

$9.99