... :It can be used as fire drill,leak detecting, signal indicating, scene making ... yellow, white etc. It can be used as fire drill,leak detecting, signal indicating, scene making. As ... grain silo, laboratory, etc. Has electric light up system, operating is easier.Size:130mm*90mmWeight, 500-600grams( ... sprayer, magican smoke spray, M18 color smoke for fire drill exercise, periscope and camera pen etc.. After ...