1. The Release Emergency Break Glass alarm button helps save lives in emergency situations. 2. Support electric control or access control system. 3. Made of flame retardant PC material, very practical and safe. 4. Witnesses only need to break the glass of the fire safety alarm button panel to send the fire alarm signal to the controller and send part of the fire alarm signal. 5. It is a better protector at home, in the store and elsewhere, and if they take preventative measures and prepare in advance, it is much better for the public and for us. Specification: Features: Release Emergency Break Glass alarm button helps save lives in emergency situations. Support electric control or access control system. Made of flame retardant PC material, very practical and safe. Witnesses only need to break the glass of the fire safety alarm button panel to send the fire alarm signal to the controller and send part of the fire alarm signal. It's a better protector at home, in the store and elsewhere, and if they take preventative measures and prepare in advance, it's much better for the public and for us. Features: Control mode: glass break trigger Connection port: common end, normally closed end, normally started Transmitting current: Transmitting power: Transmission voltage range: 1V-250V Operating temperature: - 50 ~ 65 Plastic material: New flame-retardant PC plastics Contact output: Normally open and normally closed (NO/NC) interface Standard structure: high quality imported stainless steel Electrical performance: maximum continuous current 3A at 36VDC Durability testing: lifespan testing Applicable temperature: -10 ~ 55 (14-131F) Applicable humidity: 0-95% (relative humidity) Application type: hollow door frame and integrated electrical box 86 Size: 8.6*8.6cm/3.4*3.4in Weight Package Weight: 147g/5.2oz Package List: 1 * Emergency Button 1 * Installation Kit 1 * User Manual Note: Please note that the new type and old type of this product will be sent randomly, and make sure you don't mind before ordering.