Increase home security and let visitors in more easily with this electric door strike designed specifically for deeper, Schlage-brand locks. This 12VDC Schlage compatible door strike replaces your existing strike plate with an electro-mechanical release mechanism. Simply wire one in series with a low-voltage push-button switch, an X10 Universal Module or the relay release of an intercom system, and your visitors will be able to push or pull the door open when power is applied. You can also connect them to a keypad, alarm system or other entry system. 16-Volt AC Power Supply sold separately. This model can be powered with either 8-16VAC (250mA) or 3-6VDC (900mA). When operating off AC power, the door strike will produce a buzzing sound while power is applied. When operating off DC power, a gentle 'click' is heard. Also available in a 12VDC version. The unit is reversible for left- or right-handed doors. Once installed, the door can still be operated using a key. Both strikes remain locked when un-powered. Polished brass finish. Face dimensions: 1 5/8" x 3 1/2". Case dimensions: 1" x 1 7/8" x 3".