Two Channel Relay Ethernet Internet Watchdog
If you have a device that needs rebooting when the Internet connection or network goes down, you need a Two Channel Relay Ethernet Internet Watchdog from PMD Way.
This device, once connected to an Internet device via Ethernet cable, pings a remote server every minute. If the ping fails, the device turns off the relay for ten seconds, then turns it back on again. Full instructions provided with the unit.
Ideal for rebooting a router, modem or other device that may need a kick to get connected back to the Internet now and again.
The relay can support a load 250V at 5A DC or 10A AC. The entire device requires a 12V DC 1A power supply (not included, but you could order one from here).