The Graham-Field HT1859 (Grafco/Labtron) is a box of high-quality disposable probe covers designed to ensure sanitary temperature measurement. These universal-style sheaths are compatible with most standard digital thermometers, including rigid and flexible-tip models. They feature a paper-backed, easy-peel design that allows the clinician to apply the cover without touching the sterile surface, effectively preventing cross-contamination between patients. These covers are thin enough to maintain accurate thermal conduction while providing a reliable barrier against moisture and bacteria.