
This refractometer gets the job done without paying those crazy prices. Don't think it won't work properly because it's cheap. it does. The case is good, I use it. It even comes with a dropper, which I still use. There is a small space in the case to use the adjustment screwdriver. that's a good deal.

80 Pieces Water Test Litmus Strips Litmus ph Paper Soil Acidity Meter Liquid pH Tester 1-14
10 Review

π PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 Review

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

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

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‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review

π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review