Strips have no expiration date (yes they do have an expiration date) and take 90 seconds to read. Prefer instant reading.
Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review
๐ PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 Review
TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 Review
Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review
๐ Dioxide Controller for Digital Gas Monitoring
5 Review
๐ฌ๏ธ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
Digital multimeter RGK DM-12
6 Review
Portable Handheld Manometer ๐ for Accurate Pressure Differential Measurement
5 Review