Compact: only 5" long. Measures in 60 sec. and beeps when complete. Last-reading memory. Operates in °F or °C (range 90–109°F or 32–44°C). Battery provides up to 1500 measurements, and auto-off function conserves battery life. Non-sterile, disposable sheaths are easy to apply and reduce the risk of cross contamination. Comes complete with an LR41 battery, a plastic case, and 5 sheaths.