Professional accuracy to 2/10ths of a degree f. peak temperature tone, last-reading memory recall and fever alert for temperatures above 99.5°f. fahrenheit/celsius measurements. waterproof for hygienic cleaning. clinical rigid tip. safe for oral, rectal or underarm readings. color-coded red cap identifies thermometer for rectal use. automatic shut-off and low-battery indicator. includes: thermometer, half storage case, 5 probe covers, long-lasting lr41 battery and detailed english/spanish instructions.