6 In 1 Multifunction Digital Altimeter ZD-2028 ID:1486 6 In 1 Multifunction Digital Altimeter ZD-2028 ID:1486Model ... :ZD-2028/6 in 1Multifunction Digital Altimeter(Incl.Altimeter,barometer,compass.the mometer,weather ... motoring,boating,camping,hunting and mountaineering).six functions,digital altimeter,barometer,compass,thermometer,weather forecast,time and calendar, All functions ...