The main parameters  Sensor:                            400×300 pix. Sensor Type:                   uncooled Pixel pitch:                      17 µm Objective lens:                25mm/F1.1 Magnification:                 1.7X~6.8X (Smooth zoom) Field of view (HxV):        15.4°×11.6° / m@100m Detection range:             700m Frame rate:                     50 Hz Weight:                           0.47 kg Dimensions:                   192×65×71 mm  Display parameters  Display Type:                           AMOLED Video / photo resolution:         192×65×71 pixel Video / photo format:             mp4 / .jpg Built-in memory capacity:      650 min video or & 707; 100000 pictures                    Description  TrackIR series is Guide’s new launched handheld thermal imaging monocular designed for professional hunters. With modern streamlined appearance and ergonomic design, allows you to observe the target for a long time without fatigue. Support smooth zoom, built-in stadiametric rangefinder, image quality adjustment, picture-in-picture functions. At a high frame rate of 50 Hz, TrackIR captures sharp thermal imaging throughout dynamic and rapid motion in distance. It also supports connecting accessories to realize more functions. Standard picatinny rail interface, support connecting various accessories, which is suitable for camping security, night patrol, law enforcement, search and rescue, personal security and many other applications. USB Type-C & Micro HDMI, for faster charging and better transmission. Standard picatinny rail interface, support connecting various accessories, which is suitable for camping security, night patrol, law enforcement, search and rescue, personal security and many other applications. USB Type-C & Micro HDMI, for faster charging and better transmission. Full-color 0.4-inch HD display with 1280 x 960 pixels, the image is crisper and more delicate, feel like watching 22- inch screen at 1 meter, which greatly improves the observation comfort. Stadiametric rangefinder can accurately measure the ranging of observed objects with known height (Rabbit-35 cm, boar-90cm, deer150 cm). and the real-time ranging information will be shown both on the thermal monocular and the mobile APP.