Review on 🌡️ Fivota High Accuracy Temperature 0-9990ppm Requirements by Jose Schweigert

Sorry too late to return but I will take at least a minute to review this kit. Just tried it and found two problems. The pH meter is not calibrated to 9.18 and the two TDS meters show very different results when testing the same solution ie 144 vs 395ppm. Attempts were made to use all three flow meters for multiple test liquids and each time the results were erroneous. Have recalibrated the pH meter several times using the bags provided but the numbers still don't match. When placed in liquid 9.18 it reads accurately but when calibrated it flashes 6.86 and all subsequent readings are disabled. If placed in a 4.00 or 6.86 solution it will calibrate correctly but will not calibrate to 9.18. The test solution is not a problem as it reads accurately when tested, except in calibration mode. The same goes for tds meters - it's not the nutrient solution that's the problem; Counters give very different results.