In normal mode, when the button pops up and the circuit does not close, it will not trigger an alarm and make a sound.
When pressed, the button will not pop up, the circuit will be closed, the alarm will be triggered, and the surrounding people will be alerted in the first time to quickly move away from danger.
In pop-up mode, when pressed, the key is required to unlock. Without a key, the button will not pop up. When the key is turned, the button will immediately pop up and the alarm will be released. This design is designed for elderly people who cannot long press the button, so pressing it will not pop up, so a key is needed to unlock.

Product Name: Home Emergency Button
Product color: off white
Load current: 1.25A
Working voltage: DC12V
Switch withstand voltage: DC250V
Reset method: Key reset
Product size: 95 * 95 * 45mm