The ENVIROMUX® Mini Environment Monitoring System monitors critical environmental conditions (such as temperature, humidity, and water leakage) that could destroy network components in harsh environments at high temperatures up to 167°F (75°C). When a sensor goes out of range of a configurable threshold, the system will notify you via email, SNMP traps, web-page alerts, a visual indicator (red LED), voice phone calls (via Automatic Voice Dialer System), and SMS messages (via USB 3G modem). For more information, visit http://www.networktechinc.com/environment-monitoring.html