Abstract: A self-contained emergency signaling device is removably mounted to a carrier, such as a fireman's helmet or oxygen tank. While mounted on the carrier, a high-intensity strobe light signals the position of the carrier. When detached from the carrier, a position-fixing sound producer is automatically actuated, in addition to the strobe light.

Abstract: A hand-held illuminated sign has a one piece frame comprising a perimetral wall and perimetral flanges extending inwardly from the wall edges. Translucent sign panels are fastened to the flanges. An elongate lighting member has a bulbous housing at one end that threadedly receives an annular cap. The frame wall has a portion defining an opening for tightly receiving the housing. The cap is threaded on the housing and tightly against the wall portion to hold the frame and lighting member in unified engagement. A strobe light, in combination with the sign illuminating light, is secured to the wall to emit intermittent, high intensity light energy to signal the presence of the sign bearer from distances greater than those at which the sign illumination is perceivable.