Your modern design is made 100% of aluminum, with only the magnetic area made of steel. It has a lower weight and greater resistance to corrosion, as well as providing lower residual magnetism and lower magnetism loss. Available in versions AL60, AL150, AL180, AL200, AL300, and AL600 Silent 12 Volts power supply (not included) Power current 0.6A Compatible with access controls Versions with or without an open door Support with level adjustment and slot for better installation adjustment Injected aluminum Resistant to oxidation and corrosion