Product Name: Medical Infrared Thermometer Measuring Distance: 1cm-5cm Measurement Time: About 1 Second Measuring Range: 32.0-42.9C Resolution: 0.1 (1F) Usage Environment: 16~35 Temperature Unit: Humidity: 85% (non-condensing) Power Supply: DC3.0V (2 AAA Size 7 Batteries) Automatic Shutdown: About 20 Seconds Of No Use Size: 12.2*2.9*2.3cm Weight: About 36g (excluding Battery) Service Life: Provided That The Storage Regulations Are Met, The Product Service Life Is 3 Years (excluding Wearing And Consumable Parts) Product Note: Press And Hold The Button To Switch Between Human Body Temperature And Object Temperature Modes When The Device Is Powered On; When The Power Is Off, Press And Hold The Button Until The Symbol Appears, Then Press The Power Button Briefly To Switch Between Celsius And Fahrenheit. Features: 1. Can Measure Body Temperature With One Click, Multiple People In A Row, Multiple Measurements, Non-contact Temperature Measurement To Avoid Cross-infection 2. When The Measured Temperature Is Higher Than 37.5, A Beep Warning Will Sound To Remind You That You Have A Fever, So That You Do Not Ignore The Health Risks 3. Round Body, Comfortable Grip, Streamlined Body Design, Ergonomic 4. Small In Size And Easy To Carry, You Can Measure The Body Temperature Of Your Family Members At Any Time When Traveling. 5. Automatic Shutdown, Saving Worry And Power, Automatically Shuts Down After About 20 Seconds Of Standby 6. LED Large-screen Display, With High-brightness Fonts That Can Clearly See Changes Of 0.1C, Making It Easy For The Elderly To View Package Included: 1 set * (1 temperature gun, 1 instruction manual)