Why so desperate? Look up the specs, and stimulate the components with the specified levels, and determine if they are operating. I know that's a general answer, but I don't do alot testing of these devices. It doesn't seem complicated, however. You'll need a safe source of high voltage to test them. It's my understanding that MOV's are not normally tested by the end user, as these devices are degraded when they have to provide protection. I might be wrong about that.