$16.86
PH Value Sensor Module, PH Detection Sensor BNC Connector Digital Probe Monitor Kit PH0‑14 ValueAmazon$19.77
PH Value Sensor Module, PH Module Probe Detection and Acquisition Monitoring Control Industrial Inspection Tool PH014 PH ElectrodeAmazon$7.99
PH Value Color Changing Blush Stick, PH Color Changing Blush Stick for Cheeks Makeup, Magic Waterproof Face Stick Multi-Use Lips and Cheek Tint, Matte Finish Natural Lightweight (1Pc)Amazon$7.14
Liquid PH Value Detection Detect Regulator Sensor Module Monitoring Control Meter Tester PH 0-14 for ArduinoAmazonSAVE $3.00
$16.88$19.88
Teyleten Robot PH Value Data Detection and Acquisition Sensor Module Acidity and Alkalinity Sensor Monitoring and Control ph0-14 for ArduinoAmazon$4.90
In HighPrecision Soil Detector Humidity Meter PH Value PH Value Flowers And Plants For Household UseSHEIN$211.99
TAP MAGIC 80640WS Coolant,5 gal.,Orange,9.3 pH ValueZoro.com$7.30
pc In Soil Survey Instrument Electronic Soil Detector Soil Moisture Meter PH Value Soil Tester Plant Soil MonitoringSHEIN$1.99
pH Test Strips - 5 M/Roll pH Test Paper Strip Roll, pH Full Range 0-14, Reel Design pH Test Strips Universal-pH-Test Paper-Strips-pH-Value-Test-Strips, Indicator Paper for pH Value Measurement (A)Amazon$311.09
Portable CT-6025 Digital Soil Acidity Meter Waterproof Type PH Meter Multi-Function PH Value Tester with BacklightThe Home Depot$10.85
PH Probe, PH Sensor Probe PH Electrode Probe PH Detection Tool PH Value Detection Sensor PH Data Detection Probe PH 0-14Amazon$9.90
ZzbTwinkle Carbonized Rice Hull 2QT Horticultural Activated Charcoal for Alkaline-Loving Plants, Vegetables and Fruit Trees Adjustment of Soil pH ValueAmazonSAVE $1.18
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Garosa PH 0‑14 Value Detect Sensor Module Electrode Probe PH Value Sensor Module Digital Probe Monitor Kit for Aquariums Hydroponics Laboratories Stick ElectrodesAmazon$3.72
pc Natural Almond Leaf For Fish Tank Reduce Acidity And Regulate Ph Value Stabilize Water Quality For Betta Fish And Tropical FishSHEIN$7.99
Gikfun 3-in-1 Soil Moisture Meter pH Value Meter Illumination Meter Plant Water Meter for Potted Plants, Garden, Lawn, Farm (No Battery Needed) EK1975Amazon$7.59
Aquarium Catappa Leaves, Indian Almond Leaves for Betta Fish, Catappa Leaves Aquarium Terminalia, Betta Shrimp Leave for Fish Tank, Stealthy Comfortable Environment, PH Value Water Quality RegulatorAmazon$93.60
Tisch Brand SF13829 Nylon Syringe Filter, 0.22um, 25mm, 1pk/100 per pack | Wettability: Hydrophilic | Maximum operating temperature: 100 Degrees C | Burst pressure (psi): 87 | Applicable pH Value: 3-1Amazon$239.99
Quality analyzer,SIUKE 6-in-1 Digital Dissolved Oxygen Tester Water Quality Detector pH Value Temperature Ammonia Nitrogen Toxic Ammonia Nitrite Dissolved Oxygen Meter Water Quality Monitor with DO PAmazon$11.64
pH Buffer Calibration Solution Tablets, pH 4.00, 7.00 and 10.00, Color Coded, Precise and Easy Calibration of All pH Meters [30 Tablets Total, 10 at Each pH Value]AmazonSAVE $12.63
$20.86$33.49
Classy Casita 3-in-1 Garden Soil Tester- Three Way Plant Soil Test Kit to Measure Soil Moisture, pH-Value, and Sunlight, and Classy Casita Soil Moisture Meter w/Plant Watering & Care eBook, WhiteAmazon$17.99
16 in 1 drinking water test kit Test Strips for detect pH value, hardness, chlorine, lead, iron Purity testing can be conducted on the water quality Professional Water Quality Testing Kit (100 Strips)Amazon