[Merv and Sharon]

Thanks for that. I was thinking you would need to re-charge that sim every month, but I guess it really isn't doing much and if there are 12 month cards ...

Also the batteries on the device itself would need to be good enough to last for a while at least. Some of them seem to last for 2 weeks only on trackers.

Has anyone actually fitted one of these and could it be used to disable, say, a fuel pump power feed?