Sistema de cerradura de control de acceso de puertas de EE. UU., cerradura magnética de 400 libras + 2 piezas de controles remotos
400Lbs Electric Magnetic Door Lock We provide free technical support for you to build your security system, we are in this industry for more than 10 years and really help you. NC Mode - (Locked while supplied with power) Fail Safe Mode.