NF-521S Main function: Highly sensitive sensor Cold hot spot tracking Fast capture temperature data storage Fast image refresh USB data transmission Adjustable emissivity 2.8 display screen Item Specifics: Model: NF-521S Infrared resolution 120*90 Pixel size: 12um Working band 8~14um Frame rate: 25Hz<70mK@25 NETD temperature range: low temperature range-10 ~ 120and high temperature range 100 ~ 400 Temperature measurement accuracy: +/-3or 3% of reading. FOV:H=50 ,V=37.5 Camera: 720P Angle of view: H = 83 V = 55. Palette: white hot, black hot, iron red, rainbow and other eight palettes. Display screen: TFT2.8 inch screen. Image storage: EMMC-8G has built-in storage and can be copied via USB. Temperature display: full-screen maximum temperature, minimum temperature and central point temperature. Temperature function: central point temperature measurement, automatic tracking of the highest temperature and lowest temperature in the picture, and regional temperature measurement. Temperature measurement mode: central point temperature measurement, highest temperature and lowest temperature. Image mode: edge fusion, layer fusion, visible light, infrared, picture in picture. Settings: language,