hand held soil moisture meter online manufacture

YIERYI Digital Pen-type tester ORP-969 Pen-Type ORP Meter VOxidation Reduction Analyzer Features: Use to measure the amount of Oxidation Reduction Potential (ORP) level. The tendency of the solution to either ... Read More

PH Indicator PH 3.8-5.4 Test Indicator Paper Litmus Strips The product description 1. Standard color card 2. High quality ph paper 3. Indentation design 4. Moisture proof packaging 5. ph value: 3.8-5.4 6. Fancy ... Read More

20 set pH test strips 80 Strips Full PH Meter PH paper 1-14st Indicator Litmus Paper Features: 100% Brand new and high quality There is a strong correlation between the pH of the body's internal environment and ... Read More

Test Paper Water Indicator Litmus Testing For Gardening Aquarium Plant Analysis Plant Instrument ph 0-14 Function Box material: plastic Paper length: 5m / 16ft Scale Reads From 1 to 14: 0 - 3 indicates a very ... Read More

Test Paper Water Indicator Litmus Testing For Gardening Aquarium Plant Analysis Plant Instrument ph 1-14 Function Box material: plastic Paper length: 5m / 16ft Scale Reads From 1 to 14: 1 - 3 indicates a very ... Read More