Review on Dioxide Monitor Forensics Compliant Classrooms by Isaac Simpson

This is a fantastic product. Works straight away and was packaged securely. Being a plug is really convenient and I don't have to worry about cables or other nonsense. I spend a lot of time in my room doing schoolwork and such, and this device is a really good indicator when I need to open a few windows and get some fresh air. The alarm is loud and easily recognizable. I recommend this product to everyone and will most likely buy more in the future.