Medium viscosity, water-soluble ultrasound gel for use with the KER ClockIt™ Bluetooth Heart-Rate Monitor. Use of this contact gel ensures proper function of the heart-rate monitor and optimizes accuracy of data collection. Hypoallergenic and free of formaldehydes, this gel will not discolor or stain tack or other equipment. External use only. Available in an 8-oz. flip-top bottle for ease of application.