Items are sold as is. We try our best to give an accurate description All items are either open box returns, store overstock or used. We do our best to specify in the description which the item is. All items are tested before shipment to the best of our ability. Not all item can be tested do to the fact that we do not test item that may need to be installed or seals open for obvious reasons. We do not test propane gas required items. Thank you for your interest. 

Open Box item. Tested and in working condition. Lock has been factory reset. No instructions were provided. Buy will have to download the app and follow instructions from there. That is how we tested and factory reset the lock.

The Yale YRD450 Assure Lock 2 is a black touchscreen keyless entry lock. It is a smart lock that can be controlled remotely and does not require a physical key. The brand is Yale, and the model number is YRD450.