Essential Item for Fever Monitoring - forehead thermometer is an ideal health care gift for adults, kids, and the elderly. The simple and easy-to-use design is great for all ages. It's accurate for instant reading, must-have item at home especially for children, babies, and infants. The measuring distance between the thermometer and the forehead must be 0.2~1.2 inches. 2 Options: -no back lit screen -upgraded with back lit screen Dual Mode & Memory Store - This digital thermometer measures both body and object temperature, even measuring the temperature of the surface of the milk, food, and room. The 10 sets of stored data can track your family's temperature continuously. ℉ and ℃ are switchable. Batteries are included in the individual package, ready for resell.