Overview: 1. Use MLX90640BAA infrared thermal imaging sensor; 2. Resolution: 24x32; 3. Temperature measurement range: -40 to 300 4. Measurement accuracy: +/2 (central area, 0 to 100); 5. Working temperature: 0 to 50; 6. Refresh rate: 8HZ; 7. No calibration required 8. Field of view: 75 x 110; . Emissivity 0.1~0.99 adjustable; 10. Serial port output temperature (reserved serial port on the circuit board) 11. Display center point, highest and lowest temperature; 12. Camera function (Built-in memory, you can take 100 photos. Without the help of other tools, a Micro-USB data cable is directly connected to your computer, and you can browse, copy and delete pictures on the computer) 13. Built-in 1000mah rechargeable battery (about 2 hours for full charge, run for about 6 hours after being fully ); 14. Screen size: 2.4inch (display resolution: 240x320) 15. Product size (LxWxThickness): 160 x 56 x 15mm; 16. Power socket: Micro-USB 5V/1A Interface Introduction: Operation Instructions: 1. Charging: use Micro-USB cable, 5V/1A power supply 2. Turn on/off: long press middle button 3. Setting parameters/time: Long press left/right key to enter on-screen temperature range/reflectance/time setting (the number is bright red), press the left/right key to adjust, and press the middle key to confirm. Long press the left/right key to quickly exit the setting. 4. Take a photo: press the middle button to take a photo 5. Picture preview: Press left/right key to switch to picture preview. Press left/right key again to switch pictures. Long press left/right key to exit picture preview 6. Computer copy pictures: Use a Micro-USB data cable to connect to a computer, and it will be automatically recognized as a mobile disk. The image file name format is: year+month+day+hour+minute+second.bmp. Note: The computer operation is limited to deleting or previewing pictures, please do not place other files on e mobile disk, and do not edit and modify the pictures on the mobile disk. It is recommended to fully charge it and turn it off before connecting to your computer. Material:ABS colour:Black Package Contents: 1 x Thermal Imager Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.