Server for monitoring temperature, humidity, current, energy consumption, flooding, smoke, fire, access, etc... Internal sensor: temperature. External sensor: temperature and humidity 7m. 1 basic RoomAlert.com cloud account. 1 port for external temperature sensor or temperature and humidity. 1 port for external sensor: smoke, flood, current, motion, open door, air flow, water level. 1 ethernet port 10/100; POE (Power Over Ethernet). Web interface for administration. Email notifications. Web interface for administration (https). Email notifications (SSL/TLS). SNMP V1, V2 and V3. Made in USA.