Non-Contact Body Infrared Thermometer HT-188, Fever Scanner; Can easily take body temperture far away from 5CM. Temperate Range:10°C-40°C (50°F - 140°F) Functions: 1. Specially designed to take the body temperature of a person regardless of the room temperature. 2. Quick and reliable results as it use the infrared detections system. 3. Sound alarm if temperature is exceeded 4 . Memorization of the 31 last measures. 5. LCD back-lighted digital screen. 6. Data displayed in Celsius or Fahrenheit. 7. Automatic stop (energy saver) 8. Small, convenient, easy to use. Technical Characteristics 1. Normal conditions of use Operating temperature: 10°C-40°C (50°F - 140°F) Humidity rate: ≤85% 2. Power: DC3V (2 batteries AAA) 3. Size: 196X150X50mm-7.7X5.9X1.9 (L*W*H) 4. Weight: 220g 5. Display Resolution: 0.1°C (0.1°F) 6. Measuring range: In Body Mode: 32°C-42.9°C (90°F- 109°F) In Surface Temp Mode:0°C- 60°C(32°F-140°F) 7. Precision: From 36°C - 39°C (96.8°F- 102.2°F)= +/- 0.2°C/°F 8. Consumption: ≤50mW 9. Accuracy: +/-0.3°C (0.54°F) 10. Measuring distance: 5cm-8cm (2 in-3.14 in) 11. Automatic stop:5 sec.