APEX 3780 Keypad lock


The perfect digital combination lock, manufactured in the UK, for a wide variety of applications with a solid zinc alloy body, ten digit keypad, battery indicator and secure key override.

  • Digital Combination Lock
  • Single or Three Point Locking
  • Manual Override Key
  • 10,000 combinations
  • Private or Public User Modes
  • Auto Unlock Mode
  • LED Indicator Lights
  • Audible Keypad
  • Two ‘AA’ Batteries
  • Battery Condition Code
  • Up to 50,000 cycles per pair of batteries
  • Standard Colour: Black
  • Dimensions: 136mmL x 37mmW  x 27mmD


The LF3780 has 4 code levels:

8 Digit Master Code
6 Digit Sub-Master Code
4 Digit User Codes
Technician Mode



Download LF3780 Product Brochure

Download LF3780 Operating Instructions

Download LF3780 Programming Instructions

Video – Change Master Code

Video – Change User Code using the Master Code

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