Features:  HT-320D infrared thermal imaging night-vision device adopts advance non-cooled focal plane infrared detector and quality optical lenses as the core. With the characteristics of convenient and quick operating system, small appearance design, expansion parts with perfect function, long duration of use, it is sturdy and durable and applicable to all types of environments and provides an ideal temperature measurement tool featuring “clear imaging, precise measurement, simple operation and easy to carry”. This is the best selection for onsite detection, preventive maintenance and other application sites.     The product may be used for outdoor animal observation, search and rescue, law enforcement detection for policemen, night patrol, outdoor activities and personal security, etc. The product is provided with the photographing function. The photos may be browsed by connecting with a computer through USB to make it convenient for observation of many persons at the same time, which creates possibility for application in more occasions. Specifications:  Detector type: uncooled focal plane  Resolution: 320*240 infrared focal plane  Focal length: 6.52mm  Wavelength range: 8um~14um  Field angle: 35*26  Image frequency: 9Hz  Digital zoom: 2 times  Palette: red thermal, black thermal, rainbow  Focusing mode: fixed  Image storage: JPG  Battery: built-in rechargeable battery  USB: MICRO USB 2.0  Working hours: 3 hours  Shutdown time: 5 minutes (automatic shutdown time)  Gross weight: 450g  Product size: 133*55mm/5.23*2.16''  Working temperature: 0& 8451;~45& 8451;  Storage temperature: -20& 8451;~60& 8451;  Measurement range: 200 meters     Note:      Please allow slight size differs due to manual measurement.  Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand.  Package List:  1 x Infrared Thermal Imager   1 x Data Cable  1 x US Plug Adapter  1 x User Manual