91UNIT SETTINGSUnits of MeasureUnits of measure displayed in standard format.Units of measure in metric format.The GPS 155 can be configured to display data in standard or metric units ofmeasure. These apply to: distance, position, speed, altitude, fuel, pressure andtemperature.To change the units of measure:1. Press S and rotate O to display the nav units page.2. Press C and rotate O to highlight the field you would like to change.3. Use K to change the unit of measure.4. Rotate O to advance to the next field, or press C when finished.The available units are:position : • degrees, minutes and seconds (dms) [hddd° mm’ ss.s”]• degrees and minutes (dm) [hddd° mm.mmm’]altitude : • feet (ft) • meters (mt)vertical speed : • feet per minute (fpm) • meters per minute (mpm)• meters per second (mps)nav units : • nautical miles and knots (nm, kt)• statute miles and miles per hour (mi and mh)• kilometers and kilometers per hour (km and kh)fuel : • gallons (gl) • imperial gallons (ig)• kilograms (kg) • pounds (lb)• liters (lt)pressure : • inches of mercury (hg) • millibars (mb)temperature : • degrees Fahrenheit (°f) • degrees Celsius (°c)