The Sensaphone FGD-W600 is a web based alarm monitoring unit. Complete with 6 versatile inputs and one relay output the WEB600 hosts its own internal web page for data logging, programming and all other functions. An available (optional) battery backup allows the unit to operate even through power outages. Perfect for any web based alarm applications, or where data logging is required. The large temperature monitoring range (-109F to 168F) also makes this monitor a favorite for food and health care applications.