I'm trying to find a low cost Ethernet relay. At least that's what I think that it's called. I want to be able to control the relay over the Internet via a web browser. Ideally, it should have momentary contact closure as opposed to the on/off operation of a typical relay.

In searching for one of these devices, I've found quite a few, but at a cost of $200 to $400. Far too costly for my needs. Something in the $30 range would be ideal.

Does anyone here know of a device like this? Are there any better search terms that I should be using? A kit would also be okay, but it would be nice to have something that just works right out of the box.

Thanks in advance to those who reply.