this is the gash one, ideal for a bit of home surgeryhttp://www.ebay.co.uk/itm/Garmin-eTrex-Vista-HCx-GPS-Receiver-working-or-for-spares-repair/301181036897?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111000%26algo%3DREC.RVI%26ao%3D1%26asc%3D20131017132637%26meid%3D6869752272391238989%26pid%3D100033%26prg%3D20131017132637%26rk%3D1%26rkt%3D4%26sd%3D301181036897