• Non-contact infrared measurement at a distance of 1 to 3 cm. • High-precision sensor with a margin of error of ±0.1℃. • High-definition LCD screen allowing clear reading in the dark. • Measurement modes for body temperature and for objects or ambient. • Fever sound alert for temperatures above 37.5℃. • Auto power-off after 20 seconds of inactivity for energy saving. • Multifunctional design suitable for babies, children, and adults. • Works with 2 AAA batteries (not included).