Another word for fire-alarm

As she replaced the lid, the fire alarm went off.

o% over the value of the factory products in 1900; among its manufactures are tobacco, cigars, chewing tobacco and snuff (value in 1905, $2,879,217), patent medicines (value in 1905, $2,133,198), flour and grist mill products ($1,089,910), men's clothing ($ 8 33, 8 35), and, of less importance, commercial and computing scales and time recorders, chemicals, distilled liquor, beer, fire-alarm apparatus, overalls, agricultural implements, wagons, electrical apparatus, refined oil, sheet metal, paper bags and envelopes, tacks and nails, window glass, glass-ware, clocks, whips and furniture (especially Morris chairs).

Someone switched the fire alarm on at 3.00 in the morning!

Is the Fire Alarm easily audible above machinery noise?

decoded signal from fire alarm sounder.