Emergency Door Release Switches Glass Break Alarm Button. FEATURES: Emergency Release Glass Break Alarm Button Supports Electrical Control or Access Control System Made of the Durable Plastic Shell and Easy to Install Use the Fireproof Material, Accord with the Safe Request Sandblast Panel with Elegant Style Eyewitness Only Need to Broke the Face-plate Glass of Conflagration Security Alarm-Button in Strength, then Can Make Conflagration Signal Sending to the Controller and Give out the Part of the Conflagration. Best Protector in Home, Shop and Other Places SPECIFICATIONS: Material Selection: Fireproof Material, Sandblast Finished Dimensions: 86Lx86Wx50H(mm) Current Rating: 3A@36VDC Max Suitable for Door: Exit Door, Emergence Door Operating Temp: 10~+55C(14-131F) Standard Structure: Fireproof Material, Easy to Install. Output Contact: NO/NC/COM Size: 86 X 86 X 50mm(L X W X H) Qty: 1PC . Your order will be shipped from abroad so please allow the necessary time of at least 14 work days for delivery due to ongoing delays in postal deliveries globally.