Day Switch for ML30 Slave Locks or MK11 Centre Keeps, Left Hand, MK311 SKU: MK311-DAY-LH Pinit Quantity discounts available QuantityPrice Quantity -+ Add to Basket DescriptionDescriptionThe MK311 Daylatch switch works with either the ML30 Slave Door Lock or the ML11 U26 U-Rail Centre Keep.Enables the temporary release of the locking system for convenient access without a key needed to unlock the door - e.g. when carrying shopping in from the car.When blue switch is pushed down, the door can be pushed/pulled open without a key.To deactivate, simply push the blue switch back up and the lock fires again once door is closed. A key is then needed to unlock and open the door.