If you're seriously into multisport activities you'll want to measure your speed and distance across more than just running. With the G3 GPS Sensor W.I.N.D. you'll be able to accurately track your movement whether your training involves canoeing, mountain biking, rowing or Nordic skiing. The perfect solution for measuring speed and distance across land, snow and water The inbuilt sensitive SIRF III GPS system provides highly reliable GPS reception even in wooded areas.