We bought an item it had a defect on one of the rotors but we switched from Amazon and the new product was fine. The seller responds very quickly to any doubt or question. The product itself is of good quality in terms of price and quality. In general, I recommend both the product and the seller.
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
TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 Review
80 Pieces Water Test Litmus Strips Litmus ph Paper Soil Acidity Meter Liquid pH Tester 1-14
10 Review