GOAST LedFlasher ThermalLED Flasher Target Hit Indicator (FIR Version) With the same design features as the V3, the FIR version incorporates a different diode configuration. It features one far infrared emitting diode and one red visible LED, enabling hit indication with thermal sensors at distances up to 600 m (20 microns). The LED Flasher is a precision target indicator developed exclusively for the GOAST Target Series. Designed through in house research and development,