Athlon Cronus ATS PRO Series is the latest addition to Athlon's line of premium thermal optics. These powerful thermals are available in four versions: a 35mm lens with 400x300 sensor resolution; a 35mm lens with 400x300 sensor resolution and an integrated laser range finder; a 50mm lens with 640x480 sensor resolution; and a 50mm lens with 640x480 sensor resolution and an integrated laser range finder. All versions of the Cronus ATS PRO can detect the smallest heat signatures at 2,620 yards and can recognize them at 1,090 yards, thanks to a powerful thermal sensor with an NETD rating of