Witnesses only need to break the panel glass of the fire safety alarm button to send the fire alarm signal to the controller. Sandblasted panel with an elegant design, suitable for homes, shopping malls, and other locations. Constructed with fire-resistant materials to meet safety standards. Durable plastic housing for easy installation. Compatible with electrical control or access control systems. Glass breaking button, also known as an emergency button, connects in series on the electric lock circuit to prevent situations where hardware failure of a card reader, button, or controller in an access control system could prevent personnel from opening the door from inside. Features: - New emergency release alarm button with breakable glass - Supports electrical control or access control systems - Durable plastic housing for easy installation - Made with fire-resistant materials to meet safety requirements - Sandblasted panel with sleek, appearance - Suitable for use in residential, commercial, and public buildings - Activated by breaking the glass to trigger a fire alarm signal Specifications: - Control mode: Glass breakage trigger - Connection terminals: Common, Normally Closed, Normally Open - Transmission voltage range: 1V–250V - Operating temperature: -50°C to 65°C - Material: New flame-retardant PC plastic - Contact output: Normally Open and Normally Closed (NO/NC) - Standard structure: High-quality imported stainless steel - Electrical performance: Maximum durable current 3A@36V DC - Durability tests: Rated for 1 million operations - Applicable temperature: -10°C to 55°C (14°F to 131°F) - Applicable humidity: 0–95% relative humidity - Application type: Hollow door frame and 86-type embedded electric box - Size: 8.6 x 8.6 cm (3.4 x 3.4 in) - Package weight: 166 g (5.9 oz) Package List: - 1 x Emergency Button - 1 x Installation Kit - 1 x User Manual Note: The new or old version of this product may be shipped at random. Please ensure you are comfortable with this before ordering.