Review on 🌡️ Highly Precise Professional Temp & Ppm for Aquariums (0-9990) by Ryan Turner

New update: Bought TDS water for calibration. Unfortunately, this counter is not calibrated. The meter showed 560ppm in a 1000 TDS bottle. Just want to let everyone know if you got this counter and used it for drinking I would not recommend. Don't do this, but this TDS meter cannot be calibrated and I see a lot of positive feedback. Interestingly, these people know how accurate their gauge is. I have been using this TDS meter for more than 2 months and it is very useful, it can check TDS and temperature. But today I just bought and compared another TDS meter from EZ TDS, this TDS reading was inaccurate and I tried to calibrate. And can't calibrate. I tested the water in my shrimp tank with this meter, it showed 148, but with the TDS EZ meter it showed 248. That means if I keep using this TDS meter I will kill my entire Crystal Red shrimp tank in which i have more than 50 crs aquarium. I would not recommend anyone to use this meter if you need high accuracy.