Arkayne Co presents the iRay RH25 Helmet Mounted Thermal. It is a monocular that costs US$5,999.00... "The RH25 by iRay may very well be the most versatile thermal unit around. The RH25 can be used as a handheld, helmet, standalone, or forward mounted unit.

Thermal is an essential piece of kit for the prepared person. Skip to 8:09 to see how thermal beats night vision by far.

Marty Airsoft reviews the iRay Saim SCP 19W which is a lightweight, compact and budget thermal imaging sight, though the "budget" description can be subjective as this costs over a thousand quid. The Saim SCP19 has 19mm lens to capture thermal signatures; the FOV measures 9.2 x 6.9 degrees; and it comes with a 4x digital zoom to get additional details.