There is. It's called a radio frequency tag or rf id tag. Not sure where you might get one from, though. Cheers Barry _____ From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of Alistair Sent: 28 August 2012 2:17 PM To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] Is there such a thing? Hi, My GD Jenks passed away recently so getting out and about with the cane again has been.......fun? Was wondering if there was such a device which could alert me either wirelessly or blue tooth when I get near my own front gate, bit of a bugger finding the right fence and then the right gate. Thought I saw something like this on this list some time ago, so any help appreciated. Thank you! Alistair _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2197 / Virus Database: 2437/5229 - Release Date: 08/27/12