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Displaying 61 to 90 (of 956 products)

Milwaukee Instruments pH 600 pH Tester With 1 Point Manual Calibration
$11.99 $16.99
Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory
$22.99
EC pH Monitor for Hydroponics, 6 in 1 WiFi pH ppm Tester for hydroponics System Water,Continuous Monitor of pH PPM EC CF Humidity Temp of Indoor DWC Grow System,Hydro Reservoir Tank, Aeroponic Garden
$47.99
Soil Moisture Meter for Plants, 8-in-1 Soil pH Meter for Moisture, Light, pH, EC, Fertility, Salt, Temp, Air Humidity, Soil pH Test Kit Great for Garden, Lawn, Farm, Indoor & Outdoor Use
$20.99 $27.99
Hydrogen Water Tester 10 in 1 Resistivity/Fertility/H2/pH/TDS/EC/ORP/S.G/Salt/Temp Meter with ATC pH Meter,0.01 High Accuracy pH Tester Digital,TDS Meter PPM Meter for Drinking,Hydroponics,Pool.
$25.99
Tadeto Multifunctional Digital pH Meter for Food, High Precision Garden Soil pH Test Kit with LCD ℃/℉ Display for Plant/Solution, Water and Food pH Tester for Meat, Bread, Cheese,Water, Pool
$28.99
AQUSOFT 5-in-1 Digital PH Meter with Voice Function | High Accuracy PH,TDS,EC,Salinity & Temp Pen | Waterproof & Rechargeable PH Meter for Swimming Pools,Aquariums & Hydroponics | Fast Water Tester
$18.99 $19.99
6 in 1 pH PPM H2 EC ORP Temp Water Quality Meter - Digital pH PPM ORP EC Monitor for Hydroponic & Kombucha
$19.99 $21.99
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
$54.99
PH and TDS Meter, 7-in-1 Digital pH Tester for Water, PH/TDS/EC/SG/ORP/Salt/Temp
$22.99
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display
$52.99
Bluelab PENSTP pH and Conductivity Starter Pack - Precision Nutrient Solution Management Kit with Temperature Measurement, Waterproof Pens, and Probe Care Kit
$99.00
Instruments MW102 PH and Temperature Meter
$82.99
pH Meter, Digital PH Tester Pen 3 pH Calibration Powders ±0.01 pH Accuracy Pocket Size, LCD Display for Household Drinking, Pool and Aquarium
$14.99
Bluelab PROBPH pH Probe for Water, Replacement Electrode for Meter, Monitor, and Controller with Easy Calibration, Tool for Hydroponic System and Indoor Plant Grow
$47.99
Hydrogen Water Tester, YINMIK 2025 Hydrogen Tester, Digital Hydrogen Water ppb/ppm Meter, Dissolved Hydrogen Test Pen, Accurate ORP Tester, 4 in 1 pH H2 ORP Temp Test kit for Hydrogen Water Bottle
$19.99
TDS PPM Digital Water Quality Tester | Colloidal TDS Meter | FromBora Water Test Pen | Ideal for Water Testing | PPM Meter
$9.99
2025 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc
$4.99 $6.99
SHOWER SCRUBBR REFILL
$3.99
pH EC Meter for Water Hydroponics PPM and pH Meter for Nutrients Measure pH PPM Conductivity Temperature DWC PH and EC PPM Water Tester for Nutrient Solution EC pH TDS Meter for Water System
$16.99 $17.99
Apera Instruments, LLC-AI501 PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode
$99.00 $99.00
1 Set Splendid Popular General Hydroponics pH Test Kit Indicator Tester Up and Down Control Accurate Results Volume 30ml
$8.99 $10.99
3FW Food Detector Nitrate Tester for Fish Fruit Vegetable Meat,TDS Water Tester for Home Health-White
$63.99
3-in-1 Waterproof Multifunction Digital Meter, Measures Electrical Conductivity (EC), pH and Temperature Functions Specially Designed for Hydroponic Systems
$22.99
HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy
$39.99
Hydrogen Water Tester, GIDIGI Hydrogen Tester, Digital Hydrogen Tester for Water, ORP Tester,pH Meter High Accuracy Hydrogen Tester for Drinking Water Swimming Pool Hydroponics Aquariums
$19.99
PH Meter TDS Meter 8 in 1 Digital Water Tester Pool Salt Tester Salinity, PH, TDS, EC, ORP, H2 and TDS Meter, PH Meter for Water with LCD Backlit Testing Kits for Swimming Pool,Saltwater, Sea Water
$21.99
meross PH Meter, Digital PH Meter for Water Hydroponics with ATC, IP67 PH/Temp 2 in 1 Tester Pen, 0.01PH High Accuracy Mini Pen for Pool, Drinking Water
$3.99
Hanna Instruments HI98103 Checker pH Tester with Replaceable Electrode for Plant Germination
$20.99 $21.99
Hydrogen Water Tester 4 in 1 PH,H2,ORP&Temp,pH Meter ORP Meter Hydrogen Tester for Water with ATC & Backlight,Accurate Hydrogen Water ppb/ppm Meter,Water Testing Kits for Drinking Water Quality
$21.99

Displaying 61 to 90 (of 956 products)