http://www.altersky.net/ I am interested to know what people think of this altimeter. On paper it looks good. Small 54х36х12mm Backlight for use after dark Reliable 1-year warranty Impact resistant antiabrasive polycarbonate, 1.5mm Precise Measurement accuracy: 1m (3,3ft) Range: -400 to 10000m (-1300 to 33000ft) Easy firmware update USB - chargeable Affordable Good price Water-protected case of different colou