Elitech PHM-230 Professional pH Pen Meter – Digital Tester for pH & Temperature in Hydroponics, Growing Solutions, Drinking Water with ATC & Full Calibration Kit (0.00–14.00) for Plant Health

CIZTADA pH Meter for Water Digital EC and PPM Meter for Hydroponics Nutrient 4 in 1 pH EC TDS Temperature Tester with Large Display for Indoor Plant Grow DWC Setup Aeroponic Pool Aquarium

Bluelab PENSOILPH Soil pH Pen, Digital Meter and Water Test Kit, Also Used for Coco and Rockwool with Easy Calibration for Hydroponic System and Indoor Plant Grow, Clear

Apera Instruments PH60-VS Handheld pH Meter Tester Kit with LabSen 855 ATC pH Electrode for Lab-Grade pH Measurement of Viscous Liquid Samples

Apera Instruments AI104G GroStar Series GS4 pH/EC/500ppm/700ppm Combo 5-in-1 Pen Tester Kit with Replaceable Double-Junction pH/EC Probe for Hydroponics Water Quality Testing, Gen II

GIDIGI pH EC Meter for Hydroponic, Digital pH TDS EC ppm Tester with Color Screen Display, High Accuracy pH Pen Probe for Drinking Water, Nutrient Solution, Aquariums, Pools & Home Use

LUVCOSY Digital Soil pH Meter, Industrial Grade Soil pH Tester with Calibration-Free LCD Display, High Accuracy Soil pH Pen, Soil pH Monitor for Garden, Lawn, Plant (White)

Greentest Portable Digital Nitrate Tester Food Radiation Detector Geigor Counter Water TDS Meter Tester for Fruit,Vegetable,Fish,Meat,Water

Apera Instruments, LLC-AI501 PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

GIDIGI pH Meter Food Digital Electronic pH Tester for Fermentation 3*50ml pH Buffer Calibration Solution Kits Hot Sauce Food Tester Probe for Cheese Sourdough pH Temperature pH Test Strips for Acidity

PH Meter 7-in-1 Tds Meter/Salinity Tester/pH Meter/EC Meter/Orp Meter/S.G Meter/Temp ph Tester Digital,PH Meter for Water 0.01pH Accuracy,Tds Meter with ATC.

ONiLAB Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

Healthible Lab Benchtop pH Meter - Digital Bench Top pH Meter and Electrode,Laboratory ph Meter for Liquid,0.01 pH Accuracy,with Data Storage Function

2025 All-New pH Meter for Water - High Accuracy Digital pH Tester (0.01 Precision) with UL Certification and 3 pH Calibration Powders - Ideal for Home Water, Hydroponics, Aquariums, Pools, and More

VIVOSUN Digital pH Meter, 0.01pH High Accuracy Pen Type pH Tester for Hydroponics, Household Drinking, Pool and Aquarium, Black, UL Certified

Spider Farmer 5-in-1 Digital pH Meter Kit for Water, TDS EC Temperature Salinity Tester with ATC Rechargeable for Plants Hydroponics Pool Fish Tank and Aquarium (IP67 Waterproof)

CIZTADA pH Meter for Water 4 in 1 pH EC TDS Temp Meter for Hydroponics PPM and EC Water Tester Digital pH PPM Meter for Nutrients Growing Hydroponics Gardening DWC hydroponics System

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

Digital pH Meter Food Pocket pH Pen for Fermentation with pH Calibration Kits Color Display Spear Tip pH Food Tester Probe with ATC for Cosmetics Sourdough Professional pH Test Strips for Food Acidity

HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy

YINMIK Water pH Meter, Digital 4 in 1 pH Temp EC TDS Meter for Hydroponics, PH Conductivity PPM Tester with EC Calibration Liquid, Suit for Growing Nutrients,Reservoir Tank,DWC,Brewing,Pool, Aquarium

Portable pH Meter, High Accuracy, Large Backlight Display, pH Tester with ATC, Digital pH Meter for Drinking Water/Lab/Pool/Biomedicine/Aquarium, 0-14 Measurement Range

SqkjIvy pH Meter for Water Tester Pen Monitor Water ph Meter Quality 0.01 High Accuracy Pocket Size with 0-14 Measurement Range for Soil,Household Drinking, Plants Growing,Pool and Aquarium（Yellow）