Smart locks for hotel , Zinc Alloy material Five-latches mortise, deadbolt function, high security Smart locks for hotel featrues:Zinc alloy materialFour-latches mortise, deadbolt function, high securityAdopt America ATMEL Temic encrypted card or PHILIPS' Mifare RF card, IC card.Low battery power alarm function.Different finish choosing, fadelessSuitable for commercial hotelDoor thickness ...