X-vision optics thermal monocular tm1 has a 400 x 300 thermal detector and a 1.7 to 6.8x digital magnification.This allows it to detect big game almost 2000 yards away.Weighing in at 1lb with an overall length of 7.5" the tm1 is compact and lightweight.The tm1 has a wide range of applications.The tm1 has remote viewing capabilities via the free phone app.Using this feature, users can access real-time footage from separate locations.Users can also take photos and videos and access and change settings from their mobile device through the free app.The device has an internal memory storage of 16 gb.This device is dust and water-resistant to an international protection rating of ip66.Resolution: 400x300, 50HzMagnification: 1.7-6.8xObjective: 25mmField Of View: 81 ft @ 100 ydsBattery: 5VDC InternalDimensions: 7.50" x 2.50" x 2.80"Weight: 1 lbFocus Range: Up to 1900 yds