Buy Velleman VM204 4-Channel Ethernet Relay Card Module
VM204 is an Ethernet controlled board with 4 relay outputs, 4 digital inputs and 1 analogue input. It can send e-mail notifications when the status of an input changes and features an embedded webserver. Free apps are available for Android® and iOS®.
Connect up to 5 Amps @ 30Vac to each of the relay outputs.On-board push buttons can be used to test/operate all the relays. Header for external push button connection.