Principle:  Its working principle is the law of black body radiation. The higher the temperature of the object, the stronger the infrared radiation ability it emits. The temperature data is processed by the chip and displayed on the screen.     Feature:  The target temperature measurement range is -40~+300 degree, and the dynamic refresh rate is 8Hz. The resolution of the 32-inch LCD screen is 320*240. The screen can display and track the highest temperature and the lowest temperature at the center point. The shell uses FR4 epoxy sheet, which can better protect the internal components, is not easy to damage, and has a long service life. mini size, easy to carry, you can take it anywhere you want to use it. Powered by lithium battery, the battery life can be up to 10 hours by USB-C charging, and it is very convenient to use while charging when there is no power. The built-in SPI Flash chip can store 100 pictures, and the data cable can be connected to a computer or mobile phone to view and copy the image files.  Specification:  Product size: 95*60*20mm.  Product weight: 130g.  Material: epoxy sheet + printed circuit board.  Infrared sensor: MLX90640ESF-BAB.  Hardware resolution: 32*24 pixel far infrared array.  Screen resolution: 320240 pixels.  Temperature measurement range: -40 -300 degree.  Measurement accuracy: 2.  Working temperature: 0 -50 degree.  Working humidity: 70%.  Refresh rate: 8Hz.  Field of view: horizontal 55% vertical 35.  Emissivity: 0.95.  Charging specification: USB Type-C 5V/1A.  Product size: 95*6220mm Product weight: g.  Packing size: 120+90*33mm Packing weight: g.  Battery specification: 37V1500mAh lithium ion battery.  Working time: 10 hours.     Usege:  High-precision non-contact temperature measurement.  Security, Intrusion Detection.  Body temperature detection.  Intelligent building ambient temperature measurement and control.  Car air conditioning control.  Microwave oven, oven temperature detection and control.  Industrial Parts Temperature Monitoring.  Visual temperature sensor.  Floor heating equipment side leakage and maintenance.  Thermal inspection of circuit board and components.     Package includes:  1 x Multi-function thermal imager