Review on 🔬 OZONE Meter - Mini Series with USA NIST Calibration and USB Recharge - Sound, Light, Vibration Alarms - 0-20ppm Ozone Detector by James Collins

I just bought an ozone generator for my cold bath/spa. Was concerned the 03 level in the spa room was high as ozone is used to purify the water. The ozone meter was able to detect high ozone levels when I opened the spa and then showed that indoors the levels decreased as the gas spread over a larger area. This product only scavenged high levels of ozone in that range, so I know it worked. Customer support is also very helpful. This is a good product - not cheap but great and definitely worth the money.