Elemake Right Handed Keyless Door Lock Keypad Entry Mechanical Black Lock(NOT Deadbolt,Only for Single Borehole Door, Borehole Smaller Than Dia.2-1/8,Need Drill Additional 4 Holes)

Feature

Only for the single bore doors and for standard prepared single bore doors, need to drill additional 4 holes for the fasteners.Not tall enough to cover the 2 bores on standard door, Don't use this together with deadbolt, space is not enough
Does not lock automatically (this is a pro or a con depending on your needs) - NOT Deadbolt!
Size 7.67" x 2.44", Maximum borehole diameter 2-1/8",Only for the right handed door(Suitable for wood or metal door thickness within 35-50mm)
100% Mechanical Stainless Steel 304, excellent hard material, The thief very difficultly pries open them,perfectly safe
Design for do it yourself (DIY), No Risk of "Low battery".Combination can be 4-8 digits(no repeat) and you can enter these numbers in any order to unlock it.

Description

It will stay unlocked when you inside . You can open the door anytime without enter the password.
It will stay unlocked until the handle is lifted up. That is perfect. once unlocked you can come and go as needed without having to re-enter the code.

Keyless Mechanical Digital Spring Latch Door Lock is a bump proof, pick proof, mechanical keyless door lock that does not require wires, batteries or electricity. This lock does have a lever handle on the outside as well as inside. The handle must be "pushed up" to reset clear buttons and lock the lock. They provide Keyless Security, are easy to install and use, fit most doors and are weather resistant. This lock can be used for exterior as well as interior doors.