Unique in its featured the TRF is a “thermal do all” thermal handheld rangefinder that allows ranging at night of anything that has a heat signature and can be attached to be used as a thermal crossbow sight, thermal vertical bow sight, or rangefinding thermal weapon’s sight.  TRF’s unique display also features a wide variety of functionality through a simple to use interface with a variety of palette and brightness options to fit different lighting and ambient temperature situations. The simple control system provides easy navigation of the unit’s various features and options as displayed on the high-resolution OLED display with the addition of an integrated visual laser that can be turned on or off for assistance in adjustment of windage and elevation for precision zeroing.  A narrow field of view enhances target acquisition from a lightweight, compact unit that’s easy to use.