Features        HT-04 is a Infrared camera that integrates surface temperature measurement and real-time thermal image.        The potential problems may be displayed on color display screen clearly.        This is helpful for users to locate the measurement cursor of the central point quickly and measure the temperature.        Both thermal images and full vision images can be stored in the detachable memory card.        The image may be called or stored in PC to generate a report and print.                 Description        The adjustable radiation coefficient increases the measurement accuracy of half reflection surface.        The thermal point and cold point temperature mark may guide the users to the area with highest or lowest temperature of thermal image.        The selectable color palette.                 Specifications        Model: HT-04                                                   Material: Plastic                                                       Color: black                                                      Battery service life: 2 hours        Total pixel: 35200                                            Size: 215 * 90 * 55mm / 8.5 * 3.5 * 2.2in             Infrared image resolution: 220x160                 Measurement precision: ±2.5° or ±2.5%        Wavelength coverage: 8-14um                        Emissivity: Adjustable from 0.1 to 1.0        Focus mode: Fixed                                          Image storage: SD card (4G)        Image format: JPG    Battery type: built-in chargeable 18650 batteries        Anti-dropping: 2M                                            Working temperature: 0° to 50°        Storage temperature: -40° to 80°                      Humidity: <85RH        Field angle/Shortest focus length: 27°x35°/0.