Systems and methods for providing secure locks having redundant access channels are disclosed. In some embodiments of the invention, the smart lock has a hardware processor, a power source, a cylinder, a button that forms a rose knob, and a rose protector. The rose knob and rose protector protect and conceal the hardware processor, the power source, and the cylinder. The rose protector forms an annular groove that slidably interlocks with the rose knob. The rose knob has a plurality of redundant access channels for receiving authentication information. The redundant access channels may include a biometric scanner for receiving biometric information, a passcode keypad for entering a token, or a wireless transceiver for receiving a token from a mobile device and transmitting a response to the mobile device. When the user cannot open the lock through the first redundant access channel, the smart lock is configured to allow access through a second access channel.

An arrangement (10) for a lock device (88a, 88b), the arrangement (10) comprising an input member (12, 106); a coupling member (26) movable between an uncoupled position (34) and a coupled position (80); an electromechanical actuator (28) comprising an actuating member (42) linearly movable between an uncoupling actuating position (44) and a coupling actuating position (78); and a torsion spring (30) having a first leg (62) and a second leg (64) movable away from each other against a deformation of the torsion spring (30), wherein the actuating member (42) is arranged to engage the first leg (62) and the second leg (64) is arranged to engage the coupling member (26) when the coupling member (26) is in the uncoupled position (34) and the actuating member (42) moves from the uncoupling actuating position (44) to the coupling actuating position (78). A lock device (88a, 88b) comprising an arrangement (10) is also provided.