DP 22 Handheld Thermal Imaging Camera 3.5 Inch Screen 320x240 Resolution Handheld Infrared Thermal Imager Item Type: Infrared Thermal Imager Product Material: Plastic Weight: Approx. 968g / 34.1oz Resolution: 320x240 Working Wavelength: 8-14μm Frame Rate: 9Hz Field of View Angle: 56x42 Degree Lens Focal Length: 4mm Temperature Measurement Range: -10℃ - +450℃ Temperature Measurement Accuracy: ±2℃ Or ±2% Temperature Measurement: Supports Temperature Measurement Of The Highest Point, Lowest Point, Center Point, And Area In The Entire Screen Color Palette: Enhanced Iron Red, White Heat, Black Heat, Iron Red, Rainbow, Etc Waterproof And Dustproof: IP54 LED Fill Light: Support Battery: Lithium Battery With A Capacity Of 5000mAh (Shipped With Built In Battery) Working Time: Approximately 4 Hours In A 25 ℃ Environment Screen Size: 3.5 Inches Wifi: Supports PC Software Data Transmission Storage: Built In Memory, Capable Of Storing Over 20000 Images