The encapsulated liquid crystals technology of Fever-Bugz® provides user's body temperature in increases of 1°C, visible in seconds. Can be placed over armpit, forehead or chest. Ideal for kids of all ages. Fast, gentle & safe application. Fuss-free. 48-hr continuous monitoring. Visible at a glance. Accurate within 0.5°C. Clinically proven accuracy for readings. Hypo-allergenic. Latex free. 8/pkg.