The electronic PIN code lock is an electronic product that controls the circuit or the chip by password input, door lock system using bluetooth,bluetooth based door lock system,vivint door lock code change,door lock system using bluetooth,best mortise lock brand,Exporter,Suppliers,Manufacturers,Factory,thereby controlling the closing of the mechanical switch and completing the unlocking and locking tasks. It has many types, simple circuit products, and chip-based products with high cost performance. The widely used electronic code lock is implemented by programming with the chip as the core. The performances and funtions have exceed traditonal mechanical lock.