Double-sided mechanical door lock code lock access control

  
Double-sided mechanical door lock code lock access control. American standard single-tongue lock body, you can directly replace the knob lock. No batteries or external power source or any circuit needed Suitable for 30-70mm/1.18-2.76inch thick wooden door and other doors. Will fit left & right hung doors: Left and right doors can be used, easy to install Applicable to different doors: Wooden doors, aluminum doors, steel doors, iron doors etc. Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses. People always bought together with.