Review on 🔒 Enhanced Guard Dog Security Quality Monitor: Ultimate Test, Measure & Inspect Solution by Chris Bowden

The product is compact and easy to take with you. I mainly use it to monitor the air quality in my new home. What I don't like is that even in a windowless room, reading feels unstable. Also, it seems you can't leave batteries in it and keep an eye on it for a long time. The display of numbers on the screen becomes strange after a while.