Features: Clear LED, 3 digits display with backlight. 1s instant result, wide measuring range: 32-42.9?. Advanced German sensor, high accuracy of +/-0.2?. Auto power off after 8s, power-saving. Freely exchange of ??. Non-contact, no disturbance to sleep, suitable for baby, kids, and adults. Power by 2 * AA 1.5V battery, low battery indication. FDA Approved, good quality product.