The Tech 4o Data Center II is a multi-functional outdoor instrument that is perfectly sized to fit a shirt pocket, or it can be clipped to the lanyard and worn around the neck. The Data Center is a handy tool, as it offers ABC functions (Altimeter, Barometer and Compass), forecast, temperature, basic watch operations and more! The timer features quick set values of 1/3/5/10/15 & 45 minutes, 30 second sound when count reaches zero and can be set to Pacer Mode that estimates steps based on set cadence in beats per minute (BPM). Includes lanyard.