Features: Resistance sensitivity design, can delay 3 seconds or 6 seconds to open the door. The intelligent circuit, can lock and unlock without any interference, more practical in use. With the high intelligent anti-disassembly function, it is stable and safer, without the worry of being destroyed easily. Made of metal shell, with the hexagonal screw design, it is more reliable and durable in use. IP66 waterproof function, can use it outdoors, no worry of water and rain. Simple installation, widely used in glass door, wooden door, metal door, security door, and fire door. Specification: Item name: Electric Lock Material: metal Color: black Output voltage: DC12v Current: 120mA Opening delay: 6~9 seconds Coil type: continuous working type Signal function: with magnetic signal Safety type: power off unlock Low-power function: ultra-low temperature work Performance: 500,000 aging test Application: glass door, wooden door, metal door, security door, fire door Package List: 1 * Electric Bolt Lock 2 * Hanging Board 6 * Screws 1 * User Manual . Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.