Features 1. It's very convenient to switch between Fahrenheit and Celsius. 2. It can be used in different situations. Office/subway/home/supermarket/shop/community/entrance etc 3. Non-contacting infrared technology used to scan body tamperature from the forehead to prevent cross-infection of multiple people, and the temperature can be measured quickly and accurately. 4. Autosave Last 50 temperature data, voice broadcast function. Specifications: Material: ABS. Size: 10 * 6.2 * 15 cm Weight: 180g Maximum Error :±0.2°C Response Time :0.5 seconds Measuring Distance :1-15cm Measurement Range :34 ~ 42.9°C (preset high temperature alarm: 37.5 °C) Display Units: Celsius (℃) and Fahrenheit (F) Power Supply Mode: USB D/C/5V, 3 AAA batteries power supply (shipped without batteries) Package Includes: 1x Thermometer 2x Wall sticker 1x USB power cord 1x Manual