Cracking GPS unit for walkers/trekkers/campers.
Recently got a very good review in TRAIL magazine.
Amazon doing it for £5 more, but haven't found it cheaper.......
It's a lot of money, but is GPS with zoomable OS map data. The free county map doesn't cover all the counties for some reason.
Technical blurb stuff here - there's access to the datasheet on the Outdoor site.
Battery life: Approx 8 hours continuous use, upto 32 hours with standby in operation
Battery type: 3x AA Energizer Lithium (supplied in box). Rechargeable Lithium Polymer (Power Pack option)
Power Pack Option: Wall charger (120/240v) with international heads - car charger - rechargeable lithium polymer - USB cable A/miniB (Available to purchase)
Memory: 128MB RAM
Expandable Memory: Yes
Screen Size: 3.5"
Antenna: 18mm integral patch
Screen: Colour, LCD TFT (320x240) transflective screen, adjustable backlight, changeable polycarbonate protection cover
Casing: Impact resistant ABS plastic, weatherproof
Built in Features: Compass, Direction Indicator, Map Orientation, Trip Log, Route Planner, Unlimited Waypoints
Compatible with PC based route creators: Yes, via GPX file format
Internet Connectivity: Yes - via USB to satmat website for updates / downloads
Bike Mount: Yes (not included)
Elevation Data: Yes, via Ordnance Survey gridded height data set
GPS data overlay: Yes
Map Storage: SD Card
Map Types: Vector, raster and aeriel / satellite photography
Pre-loaded Maps: Full Great Britain road map (Vector) Ordnance Survey 1:1,000,000
International maps: Yes, regular updates available
Audio Visual POIs: Yes, as supplied by Satmap
Geocoaching compatible: Yes
Dimensions: 13 x 7.5 x 3cm (HxWxD), 175g