Danger warning sign

danger warning sign, caution sign, hazard symbol, safety alert, risk notice, danger symbol, warning label, attention sign, safety mark, alert signal, toxic warning, electrical hazard, fire hazard, biohazard sign, emergency alert, safety message, danger board, road warning, industrial safety, chemical hazard, construction warning, safety instruction, workplace hazard, restricted area, danger notice, high voltage, safety reminder, health hazard, danger mark, alert icon, warning graphic, danger indication, safety awareness, protective symbol, do not enter, critical alert, accident prevention, danger attention, emergency notice, warning display