KY-111 Infrared forehead non-contact thermometer, 1s measurement, with LCD screen and data saving 1. Temperature measurement distance: 3cm-5cm (non-contact). 2. Measuring range: 34°C- 42°C (93.2°F -107.6°F). 3. Measurement accuracy: ± 0.3°C. 4. Test time: <1s. 5. Power supply: DC 3V (2×1.5V AAA). 6. Using high-precision infrared sensor, stable and reliable performance. 7. Can save 32 sets of test data, can switch °C / °F. 8. Large LCD screen, high brightness backlight, clear display. 9. 40s automatic shutdown saves energy. 10. Size: 153mm * 88mm * 44mm, weight: 95.5g (without battery)