Measuring range: -40℃ to +300℃, 8Hz dynamic refresh rate. 2.8-inch screen with 320*240 resolution; displays and tracks highest, lowest, and center point temperature. Shell made of FR4 epoxy sheet for internal component protection and durability. Compact size for portability. Powered by lithium-ion battery with USB-C charging; up to 4 hours of operating time; supports use during charging. Built-in SPI Flash chip stores up to 100 images. Connect to computer or mobile device via data cable to view and transfer image files. Integrated design, no external accessories required. Infrared sensor: MLX90640ESF-BAB. Hardware resolution: 32x24 pixel far infrared array. Screen resolution: 320x240 pixels. Temperature measurement range: -40℃ to 300℃. Measurement accuracy: ±2℃. Operating temperature: 0 to 50℃. Operating humidity: ≤70%. Refresh rate: 8Hz. Field of view: 55° horizontal x 35° vertical. Emissivity: 0.95. Charging interface: USB Type-C, 5V/1A. Product dimensions: 85x55x30mm. Battery: 3.7V 600mAh lithium-ion. Operating time: ≥4 hours. Color: Black. Material: Plastic + metal. Package Contents: 1 x Portable Thermal Imager. Note: Light reflection and display differences may cause slight color variation between image and actual item. Measurement error allowance: ±1-3cm.