gas alarm / warning

Shows a warning when the voltage is under the alarm value

gas alarm

Warning text that appears when the battery voltage falls below warning threshold

gas warning sign

gas warning

gas gun; (tear) gas launcher

alarm button

alarm placement

alarm system

alarm unit

audible alarm

automatic chemical agent alarm

Doppler effect alarm

radio alarm signal

WMD alarm (weapon of mass destruction)

air raid siren / alarm

fire extinguishing system sprinkler system and fire alarm system

antitank alarm

assembly formation after an alarm

fire alarm bell

fire alarm light

overflow alarm

visual alarm

circuit alarm

automatic-alarm receiver

emergency alarm system

failure alarm

false alarm

fire alarm

fire alarm system

flag alarm

general alarm system