You can get another version with a low amp fuse connecting the two sides with the thumb nut removed. This allows clocks etc. to continue to work but try and start it the fuse will blow so stopping a thief (or at least postponing them!).
Richard,
I know that but some wally is bound to try and start it to move it around, without checking if the master switch is on or off and blow the fuse. If the master is off, I am guessing they will just push it if it needs moving. I have printed a sheet with "LEAVE IN GEAR WITH HANDBRAKE OFF" in large red print to leave on the seat. The handbrake rusted on with this car in storage in the UK last year, after someone put the hand brake on.
I would prefer the sort of master switch that is on my 911 RSR, which is in the middle of the dashboard and as soon as you are in the car, you can visually check if it is on or off. You actually know if it is on, as the Brantz Trip meters, digital speedo and rally timers' LED displays are lit up. That however does not have a bypass as the DEM (Digital Engine Management) module uses a non-volatile EPROM for its programs and uses that to regenerate the injection parameters after starting. However that master switch system is about 200 times the price of the switch above. The rally timers have their own internal batteries to retain the time but not display it, with the power off.
