1、The emergency release glass break alarm button is suitable for the exit door and emergency door. 2、Just break the face-plate glass of the alarm button in strength, then can make conflagration signal sending to the controller. 3、Supports electrical control or access control system. 4、Made of durable plastic shell and easy to install. Use the fireproof material, accord with the safe request. 5、Sandblast panel with elegant style. Best protector in home, shop and other places. Features: The emergency release glass break alarm button is suitable for the exit door and emergency door. Just break the face-plate glass of the alarm button in strength, then can make conflagration signal sending to the controller. Supports electrical control or access control system. Made of durable plastic shell and easy to install. Use the fireproof material, accord with the safe request. Sandblast panel with elegant style. Best protector in home, shop and other places. Specifications: Current Rating: 5A@48V DC Max Suitable for Door: Exit Door, Emergence Door Operating temp: 10~+55°C(14-131F) Material: Fireproof Material, Sandblast Finished Output Contact: NO/NC/COM Operating Humidity: 0-95% (relative humidity) Color: Green, Red (Optional) Item Size: 8.7*8.7*5.0cm/3.42*3.42*1.96in Item Weight: 127g/4.47oz Package Size: 8.9*8.9*5.1cm/3.50*3.50*2.00in Package Weight: 150g/5.28oz Package List: 1 * Break Glass Switch 1 * Set of Mounting Screws 1 * User Manual 1 * Break Glass Switch 1 * Set of Mounting Screws 1 * User Manual