This solid-state electronic instrument is designed for easy and accurate taking of body temperature. It has a dual scale (°C or °F), and is fully waterproof for either oral or rectal use. Thermometer comes with a storage case, two probe covers, instructions and warranty. FAST: Measures temperature in 10 seconds * ACCURATE: Precise measurements to within ±0.2°F (0.1°C) EASY TO USE: Jumbo digital display, last reading recall, beeps when ready * Results may vary by individual and method used. Average time in clinicals: 10.6 seconds rectal or 15.9 seconds oral.