Invisible by TLJ

Designed to blend seamlessly into the most sophisticated internal decor, Invisible by TLJ complements higher specification, contemporary hotel, leisure and residential schemes.

Electronic access control driven by design

Offering the pinnacle in electronic access control solutions, Invisible by TLJ is driven by design. All the essential parts of the Invisible lock mechanism are housed within the lock case itself. Only the lever, cylinder escutcheon and LED indicator are visible to the user, bringing you a more refined look.

Invisible by TLJ electronic contactless door lock is well suited to modern, higher specification building projects where beautiful aesthetic is paramount. A full length, matching face plate further enhances the look.

A specifier’s dream – Invisible by TLJ is unlike most electronic lock sets in that it can be used with any lever on rose you like. This allows fittings to be matched throughout the building, with a consistent appearance for bedrooms, bathrooms, store rooms, apartments and entrance doors. The options are almost endless – finally, access control no longer restricts choice.

Invisible by TLJ is configured for Radio Frequency (RFID) and Bluetooth (BLE) to offer simple, contactless operation by key card, fob or smartphone. It can also be integrated with many of our partners’ smart building applications for full Smart Home Automation.

Suitable for
  • Compatible with a vast range of architectural ironmongery
  • RFID technology for contactless operation
  • BLE-ready for smartphone operation via TLJ Mobile Keys
  • Smart Home Automation compatible (Z-wave module keypad PIN code unit sold separately)
  • Range of access tokens available (TLJ key cards, fobs or wristbands)
  • Fully certified for fire safety and security
  • Self-contained and low maintenance, with no external wiring required
  • Mechanical override key
  • Market-leading 3-year return to base warranty
  • Smart lock case with 3 embedded sensors:
    • Latch alarm when door not closed
    • Deadbolt double lock
    • Auditable mechanical over-ride key
  • Up to 3 years battery life (4 x AA batteries)
  • Self-diagnostic LED patterns for fault finding
  • Multiple operational modes:
    • Hotel / hostel mode
    • PBSA student mode
    • BTR residential mode
    • Office / commercial mode
  • Low battery alert & reserve battery
  • Audit trail, previous 1000 activations recorded
  • Compatible with TLJ Connect writeback functionality
  • Certified to PAS 24:2016 enhanced security performance certification
  • CE certified to EN14846:2008, EN50371:2012, EN1634-1:2014
  • Secured by Design approved
  • Certifire approved
  • SKG-IKOB 2-star rating, for quality, safety & durability
Invisible by TLJ brochure Invisible by TLJ technical Datasheet
Case study
The Helm - mixed use BTR, retail & office space

TLJ install integrated smart access control solution at prestigious BTR development, for M&G Real Estate.

Read more
Related products
Secured by Design
Secured by Design

Police approved to reduce levels of crime and improve security within a building. Developments using products and materials that meet Secured by Design Standards are up to 75% less likely to be burgled and show a reduction of 25% in criminal damage.


Third-party certification body that assures performance, quality, reliability and traceability of fire protection products. Recognised by regulatory authorities worldwide, it is an internationally respected mark of fire safety and one of the most authoritative in the industry.

CE Marking
CE Marking

CE marking guarantees that access control products are designed, tested and approved according to harmonised standards on health, safety and environmental protection legislation.

EN14846:2008 - Electromechanically operated locks
EN50371:2012 - RT&TTE, Low-power human RF exposure & European EMC, LVD directive

SKG 2 star
SKG 2 star
3 year warranty
3 year warranty

Market-leading 3 year return to base warranty. Repair or replacement due to any failures resulting from manufacturing faults. Vandalism or abuse is not included. Repair or replacement is at TLJ’s discretion.