The Top of the Range Monocular with a Extremely high thermal sensitivity, NETD<20mK. High definition thermal sensor, up to 640x512 @12μm. Super large aperture f/0.9 lens, 19% improvement. Image Pro, enhanced self-developed image processing algorithm. Replaceable and Rechargeable High Capacity Battery, Not-stop Observation. Long detection range up to 2600m and a field of view of 15.3m×12.2m@100m. Powerful digital zoom, up to 8x.