Very impressive device! - ATN ODIN LT 640, 1-4x19mm Compact Thermal Viewer Sensor, Multiple Patterns & Color Options Reticle

Great thermal. A little bit expensive, but you get a high quality clear thermal picture with this unit. I also was pleasantly surprised that the maximum range to pick up heat signatures was further than stated. Any entry level thermal can't beat it! Really like that it can be mounted on the helmet. Highly recommend