Features: 1.Efficient Alarm: The one click triggered operation can quickly trigger the alarm system in the event of a fire, ensuring a quick response in case of emergency. 2.Embedded Square Button: The emergency button adopts embedded design, which is easy to install in various devices, and the product size is 2.05 x 2.05 x 1.06in. 3.Easy to Operate: The operation method of the emergency alarm button is also very simple, the user only needs to press the button, and the key can be used to recover. 4.Durable Panel and Key: The shell is made of plastic material, high temperature resistance, impact resistance, metal key, durable and with long service life. 5.Widely Used: The emergency button is suitable for a wide range of security doors, escape doors, security systems, schools, effectively improve safety. Specification: Item Type: Emergency Alarm Button Material: Plastic Product Size: Approx. 5.2 x 5.2 x 2.7cm / 2.05 x 2.05 x 1.06in Rated Voltage: 250V Rated Current: 1.25mA Operating Voltage: 12V PackageList: 1 x Button 1 x Key