There are a bunch of devices out there that will do something like that by power cycling incoming voltage:

http://www.digital-loggers.com/lpc.html

There are a bunch of data center PDUs that can be hooked up to monitoring software that will check on multiple devices and do the same thing.
What is nice about using the PDU / power line reboot is that you can use it to reboot just about any miner out there.

Normally, I would say move this to the AltCoin mining section, but since the merge GPU mining has gone to shit, so perhaps changing the product to accommodate high voltage / amperage devices would be better.

-Dave