The EnviroAlert® EA200-12 critical-environment monitoring device provides visibility to two environmental zones(areas): on-board ambient temperature and an additional zone(area) to monitor for temperature, humidity or water presence. In addition to the local (on device) visual and audible (Piezo buzzer required – 3rd party buzzer add on) notifications, when integrated to a security panel the system allows for the real-time notification of an incident and immediate corrective action.