What is the button for fire hydrant pump?
A button is arranged on the surface of the fire hydrant button, and when the fire hydrant is started, the press button can be pressed directly, and the red start indicator of the fire hydrant button is bright, and the yellow warning object is ejected
That has issued a warning to the fire control room, fire alarm controller (commonly known as the alarm host) in recognition of the fire pump started running, to the fire hydrant button will send command signal light green light answer.
