The CB31 Pulse Oximeter offers a unique soft silicone housing for superior comfort and fit. The silicone housing also offers an additional layer of protection around the body of the Pulse Oximeter making it a very robust, durable unit. The CB31 is supplied with battery, lanyard and 3 year warranty. • 3 year guarantee • 8 hours continuous use • Requires 1 x AAA battery • Drop proof (1 Meter) • Suitable for adult & paediatrics • Auto power down, low battery Indicator • OLED displays Sp02, PR, pulse b