Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Exclusive ExacTemp technology provides an active user feedback light, guiding proper probe positioning * Preheated probe tip minimizes the cool down effect experienced when taking repeat temperatures, improving both accuracy and repeatability * Featuring exclusive ExacTemp technology to ensure proper positioning and improved accuracy in three to seven seconds, the new PRO 4000 is one of the fastest thermometers ever developed * Probe cover detection system improves accuracy by ensuring precise infrared heat transfer * Automatic probe cover eject button makes for quick and easy removal of used probe covers * Innovative security features reduce occurence of theft in hospital environment * 3-year limited warranty