1. Measuring range -40C to +300C, 8Hz dynamic refresh rate 2. The 2.8inch screen resolution is 320 x 240; the screen can display and the maximum temperature, minimum temperature and center point temperature 3. The shell adopts FR4 epoxy sheet to better protect the internal components and has a long service life 4. Small size, easy to carry. Powered by lithium- battery. USB-C charging; up to 4 hours of battery life. Can be used while charging 5. Built-in SPI Flash chip, which can 100 pictures. and copy files by connecting a computer or mobile phone with a data cable. Integrated design, no need for external equipment Infrared sensor: MLX90640ESF-BAB Hardware resolution: 32 x 24 pixel infrared array Screen resolution: 320 x 240 pixels Temperature measurement range: -40C to 300C Measurement accuracy: 2C Operating temperature: 0 to 50C Working humidity: 70% Refresh rate: 8Hz Field of : Horizontal 55 x Vertical 35 Emissivity: 0.95 Charging specification: USB Type-C5V/1A Product size: 85 x 55 x 30mm Battery: 3.7V 800mAh - battery Working time: 4 hours application: High-precision non-contact temperature measurement Security and intrusion detection Body temperature check Intelligent environment temperature measurement and control Car air conditioning control and oven temperature detection and control Temperature monitoring of industrial parts Visual temperature sensor Side leakage and maintenance of floor heating equipment Thermal inspection of circuit boards and assemblies color:Black Material:PCB+Metal 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.