"Locked" Switches for important devices

I have some (power monitoring) relays for important devices I don't want switching off - e.g. Fridge, and my iMac that's running Indigo. I don't want to ever switch them off, but I do have them connected to a relay, just for power monitoring.

I would be nice if there was an option to LOCK a device switch so it cannot be switched off by accident.

It's not exactly a lock, but you could set a trigger to turn it on if it ever gets turned off. You could also get it to send you a message/email to alert you someone tried to turn it off.

I feel that this is a real hole in the market. We need a plug in Z-Wave device that measures energy usage but is not a switch.

I'm just too paranoid to plug my sump pump into anything that could possibly turn it off.

Doesn't the Insteon iMeter Solo only measure power without switching it? I don't have any but have been considering getting a few for the reasons mentioned.

For my DSC alarm and Mac running Indigo I used external sockets, not to stay dry but because they have covers with latches so can't be accidentally switched off. Probably not what you're after but just saying.

[jay (support)]

If you're using INSTEON, then as roussell mentions the iMeter is what you want - monitoring but no control. Don't know of any Z-Wave alternative though.