Athlon 210142 Cronus ATS 35CL-400 Thermal Clip-On w/LRFThe Athlon Cronus ATS 35CL-400 Thermal Clip-On with LRF 210142 is a high-performance thermal clip-on device that adds advanced thermal capabilities to your daytime riflescope. Featuring a 400x300 resolution and a 12µm thermal sensor, it delivers exceptional clarity with a sensitivity rating of Athlon Cronus ATS 35CL-400 Thermal Clip-On w/LRF 210142