An audible alarm or audible signal from Grainger can create an emergency action plan. An audible alarm can produce a coded blast or sustained tones to alert your employees to weather, fire or security warnings. Audible signal options range from handheld air horns that produce up to 120 decibels of noise from 10 feet away, to simple chime doorbells. Give your employees the best audible alarm and audible signal options for proper safety measures and alerts on the job.