Internet Remote Monitor System Has 6 Dry Contact Inputs for Wide Variety of Sensors No monthly monitoring fees! The Sensaphone Web600 Web-Based Monitoring and Alarm System needs internet access: no land telephone line required. This flexible web-based remote monitor is affordable and easy to use. Uses dry contact inputs including Thermistor with a temperature sensing range of -109 degrees F to 168 degrees F. 4-20mA. Program this unit remotely for up to 32 alarm notifications for up to 6 inputs. Note: Not compatible with IMS systems. With this alarm system , you'll be notified immediately when critical temperatures or other conditions being monitored change from the normal range you choose. The Web600 is completely stand alone and easy to use. Use to monitor temperatures in cold food storage, medical cold storage , and other temperature sensitive areas like computer rooms and data centers. Besides temperature monitoring, the Web600 can also read values from humidity sensors, air quality sensors, water leak detection sensors and much more. The Web600 comes in a 4.5 inch by 3.25 inch by 1.5 inch unit. There are 6 available zone inputs. A battery back-up unit (not included) plugs into the left side of the unit. Also there is an ethernet connection and a input for the 5V DC power adapter. There are two lights, a power and an alarm light on the top of the unit. A screwdriver is even included. The network configuration is automatic if your network supports DHCP. You simply plug in the supplied network cable, plug one into the Ethernet port and one end into your network device (hub, switch, router, modem, etc.) Then turn on the power. The startup sequence begins within a minute or two. Then install the Sensaphone locator application found on the CD (included) or from the Sensaphone website. If your network has no DHCP, the default configuration is 192.168.1.250. Sensaphone Web600 Web-Based Monitoring and Alarm Specifications: Alarm Notification Methods: E-Mail, Text Me