Abstract: A thermal marker, according to various embodiment, can include a marker detectable by thermal sensors but having additional properties. The thermal marker can be developed in a panoply of colors or can be created to have retroreflective properties. In various embodiments, a single marker can be produced that is detectable by multiple thermal imaging sensor systems. In various embodiments, the markers can be simultaneously used with the naked eye and various sensors. Additionally, a method according to various embodiments can produce a thermal marker in a wide variety of colors. The thermal markers can covertly mark objects, such as vehicles, people, and other fixed assets efficiently to assist in surveillance missions.

Abstract: A thermal sleeve cover according to various embodiments can include a target layer material having emissivity and reflecting properties identifiable by a thermal sensor detecting device during firearm training. The thermal sleeve cover is fitted over a target backer in a taut manner to promote thermal contrast between the target layer material and its surrounding background. The tautness of the target layer material enhances the thermal identification when the target layer material is detected by the thermal sensor detecting device. The thermal cover is adjustable to snugly fit over a variety of target backers having different configurations and sizes.