Monitor Temperature Humidity Detector Mountable Review

I bought this device randomly as there were very few reviews but judging by the description it has everything I wanted. I was looking for a battery powered monitor that could report temperature and humidity and carbon monoxide and smoke/fire detection was a bonus. I wanted to leave this in a house I don't live in during the winter and provide remote monitoring and alerts if something goes wrong with my heating system while I'm away. The unit arrived quickly, but oddly there is no name or model…