Feature: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.Specification: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 MaxSuitable for Door: Exit Door, Emergence DoorOperating temp: 10~+55°C(14-131F)Material: Fireproof Material, Sandblast FinishedOutput Contact: NO/NC/COMOperating Humidity: 0-95% (relative humidity)Color: Green, Red (Optional)Item Size: 8.7*8.7*5.0cm/3.42*3.42*1.96inItem Weight: 127g/4.47ozPackage Size: 8.9*8.9*5.1cm/3.50*3.50*2.00inPackage Weight: 150g/5.28ozPackage List:1 * Break Glass Switch1 * Set of Mounting Screws1 * User ManualPackage List:1 * Break Glass Switch1 * Set of Mounting Screws1 * User Manual