JOUNJIP Mechanical Keyless Combination Latch Door Lock [Flat Spindle] - Double Sided Keypads for Gates, Fences, Windows - No Battery No Power Needed (Satin Chrome) - Not a Deadbolt

No batteries needed- 100% mechanical operation & dual keypad security provide the ideal keyless entry solution (latch lock) for window pane doors, wrought iron gates and other areas requiring 2-way code control. Code is set on the back of the keypad. Universal installation in both left & right opening doors. - Intermediate to advanced installation skill level required

• No Batteries or Power Needed - Reliable mechanical operation even during a blackout or power outage. Locks are automatically engaged every time the door is closed.
• "Bump Key Proof" Keyless Lock - Bump key is very easy to purchase these days but this lock has no keyhole for burglars can mess with.
• No Easy Release Button and Dual Keypads for 2-way Security - Eliminates "reach through" security risk on gates, fences, and windows.
• New "Quick Code" Design - Much easier code change from the back of the keypad without having to open the keypad itself. 2 different passcodes are possible for primary and secondary keypads.
• Intermediate to Advanced Installation Skill Level Required. Passage Mode is NOT available on this lock.