Features:Measurement range -40C to +300C, 8Hz dynamic refresh rate.2.8" screen resolution is 320x240; the screen can display and track maximum-temperature, minimum temperature and center-point temperature.The cover is FR4 epoxy sheet, which better protects the internal components and has a long service life.Small size, easy to carry.Powered by Li-ion battery. Type-C charging; up to 4 hours of battery life. Can be used while charging.Built-in SPI Flash chip, which can store 100 pictures. View and copy images files by connecting a computer or mobile phone with a data cable.All-in-one design, no external equipment required. Specifications:Material: epoxy resin board + printed circuit boardInfrared sensor: MLX90640ESF-BABHardware resolution: 32x24 pixel far infrared arrayScreen resolution: 320x240 pixelsTemperature measurement range: -40C to 300C,Measurement accuracy: 2C,Operating temperature: 0 to 50C,Working humidity: 70%Refresh rate: 8HzField of View: Horizontal 55 x Vertical 35Emissivity: 0.95Charging specification: USB-Type-C5V/1AProduct size: 85x55x30mm/3.35''x2.17''x1.18''Battery: 3.7V 800mAh Li-ion batteryWorking time: 4 hours Note:Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes:1x Infrared Thermal Imager