This easy-to-use, compact low-level CO monitor with built-in temperature and humidity sensors is a simple and attractive way to gauge a room’s environment, and is particularly useful for temperature in condition-sensitive rooms such as bedrooms and living areas. A multi-color LED ring changes color to indicate shifts in temperature, from blue for too cold, amber for too warm, white for correct temperature and bright red to indicate a CO emergency. Wi-Fi technology provides instant notification of changes to the user’s Android or iOS devices.