Blank - Stethoscope clip digital timer. Comes with standard digital clock functions and pre-programmed 15, 30 and 60 second pulse timers. This convenient accessory is an all in one unit and a must for every health care professional, simply attach it to the stethoscope tubing. Clip attaches to all standard stethoscopes. Batteries included. Patented: 7,236,994 & D543,877.