Features: The resolution of the 3.4" screen is 320x240; the screen can display and track the maximums temperature, the minimum temperature and the temperature of the center points. Its shells use FR4 epoxy sheet to better protect internal components and have a long service life. Lithium-ion battery-powered. USB-charging; up to 10 hours of battery life. Can be used while charging. Built-in SPI Flash chip can store 100 pictures. Measurement range -40℃ to +300℃, and 8Hz dynamic refresh rate. Integrated design and no external device is needed. Small size makes it easy to carry. View and copy image files by connecting a computer or mobile phone with a data cable. Specifications: Material: FR4 Epoxy Sheet Color: As The Picture Shows Package Weight: approx.157g Size: approx.95x62x20mm/37.40x24.40x7.87in (More Size Detail, Please See Photo.) Hardware Resolution: 32x24 Pixel Far Infrared Array Screen Resolution: 320x240 Pixels Temperature Measurement Range: -40℃ to 300℃ , Measurement Accuracy: ±2℃ , Working Temperature: 0 to 50℃ , Working Humidity: ≤ 70% Refresh Rate: 8Hz Field of View: Horizontal 55° x 35° Vertical Emissivity: 0.95 Charging Specification: USB+Type-C 5V/1A Product Dimensions: 95x62x20mm/3.7x2.4x0.8" Battery: 3.7V1500mAh Lithium-ion Battery Working Time: ≥ 10 Hours Package Includes: 1 x Data Cable 1 x Thermal Imager 1 x Mirror Cleaning Cloth note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!