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Keyless Electronic Digital Door Lock MRDJ Left Hand




This electronic keypad lock is a stand alone door lock. It is widely used for all kinds of doors, including residential households, apartments, warehouses, airports, and office buildings. It's the newest design and most solidly built lock on the market. The lock is programmable for 10 independent users and changing the access code takes less than 30 seconds! Never fumble for keys again! Give a temporary code to friends, visitors, house keepers, employees, or anyone for any reason!

The lock will mechanically automatically lock itself when the door is closed. From outside, you can turn the handle but the door will be locked. The only way to unlock the door from outside is by key or code. From inside, just turn the handle and unlock the door. It works like a regular lock, no key or code needed.

Main features:

  • 1 unique master code; 9 groups of user codes; each code can have up to 13 digits; modify code in seconds
  • Cast steel buttons that resist wear and sunlight
  • Solid structure design for security and durability
  • Low battery alarm
  • External power capability
  • 3 manual override keys
  • Tamper-proof error function, vandal-resistant lever design
  • Alarm after 5 failed code attempts
  • Easy installation only need a Philips screw driver to install on a predrilled door in less than 15 minutes
  • Up-to-date material for stable and durable performance
  • Weatherproof
  • One year warranty

Technical parameters:

  • Suitable for door thickness: 35~50mm² and standard 2 3/8" backset (2 3/4" backset is available by request)
  • Requires 4 AA 1.5V alkaline batteries (included)
  • Service life of battery: approx. 20,000 times (up to two years)
  • If alarm indicates low power supply, it can still open approx. 50 times

Product Dimensions:

  • Length: 7 7/8"
  • Width: 2 1/2"
  • Depth: 1"
  • Latch center to top: 4 1/2"
  • Latch center to bottom: 3 3/8"


  • Length: 4"
  • Width: 2 1/4"
  • Depth: 3/8"
  • Latch center to top: 2 1/4"
  • Latch center to bottom: 1 3/4"

Package Content:

  • One Security Electronic Digital Keypad Door Lock (M-RDJ left Hand) Retail Box

How to select the correct lock:

  • Left-hand or right-hand lock: when looking at the door from OUTSIDE, hinges on left indicate a left hand door, hinges on right indicate a right hand door.
  • There are two popular backset sizes for pre-drilled doors. Measure from the handle center to the edge of the door: standard size is 2-3/8" and the optional size is 2-3/4 ", available by request.

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