When a fire occurs, the glass is manually crushed, and the fire alarm light of the button lights up. The controller emits an alarm sound and displays the alarm location. The installation location is set at the staircase entrance and other places, with a height of about 1.5m above the ground.
The working voltage range of this button is 15-30VDC, with a power consumption of 200 μ A. It is equipped with a special test key, which can test its alarm function without breaking glass. It is suitable for situations where corridors or large factories require shared addresses.