
Strips have no expiration date (yes they do have an expiration date) and take 90 seconds to read. Prefer instant reading.

Digital PH Meter Tester - Tiaoyeer Water Quality Tester With ATC, 0.01PH High Accuracy, 0.00-14.00 Measurement Range, 0.01 Resolution For Drinking Water, Aquarium, Swimming Pools, Hydroponic
8 Review

Accurate And Versatile Digital PH Meters For Food, Brewing, Hydroponics, Pools And More!
7 Review

Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review

Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review

π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review

π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review