Isn't the slave just a "switch"? Is it momentary? If so, then there shouldn't be a reason why a 110 volt "switch" won't work. I don't think there are any active electronics in a slave. Haven't looked at one in a long while, so don't take this as gospel, but If it were me, I would look before throwing out a bunch of switches. Of course the wiring will be different than when wired to a loaded 110 volt line.