MONITOR EMPHASIZES FORM FACTOR FEATURE SET & GPS SENSITIVITY INCLUDES HIGHLY SENSITIVE GPS RECEIVER FOR ACCURATE DATA SIRF-STARIII RECEIVER FOR GREAT RECEPTION IN CHALLENGING CONDITIONS LIGHTWEIGHT & WATER PROOF MONITORS VERTICAL PROFILES CLIMB & DESCENT ALTITUDE SPEED DISTANCE & TIME GPS BASED CONVENIENT FOR COURSE MAPS WHICH INCLUDE HILLS & CURVES MOUNT ON THE STEM OR HANDLEBARS & INCLUDE ROUTING CAPABILITY & ADVANCED WORKOUT MEASURES PEDALING CADENCE & HEART RATE DATA INCLUDES A BAROMETRIC SENSOR PC-BASED TRAINING CENTER SOFTWARE ALLOWS USER TO CREATE WORKOUT OR USE WORKOUT TEMPLATES & DOWNLOAD TO UNIT SENSOR DATA TRANSMITS VIA WIRELESS COMMUNICATIONS TRAINING CENTER ALSO ALLOWS USER TO CHART WORKOUT PERFORMANCE GEARED TOWARD ADVANCED CYCLING COMPATIBLE WITH THE HEART RATE & SPEED/CADENCE SENSORS 1.44"H X 1.17"W 4-LEVEL GRAYSCALE LCD WITH BACKLIGHTING DIM: 3.7"H X 1.75"W X .9"D"