I have had many problems with this sensor/meter. This would give significantly different readings for the same fluid sample, despite cleaning between tests and several other troubleshooting methods. Given 1 star because it's useless to a scientist if unreliable. Do not use this for quantitative measurements
Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review
TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 Review
π PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 Review
Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review