Ultrasonics are what detect motion inside the car. It's got all the usual rearm features and all that but mine doesn't rearm goes into valet mdoe so immobilzer just kicks back in and all sensors are off. That feature or auto rearm is a cunt especially if you've left your keys in it!

Jay, I got it done by a guy called Dennis can't remember price was something like £380-£400 supplied and fitted with all the extras. His number 07980221525. He does Clifford too. I've recommended him to a few people and they have had Cliffords off him and have been no bother at all. Just goes to show he does a proper job so I wouldn't hesitate having a Clifford off him in the future.