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Black / 25 mm
Doors prepared around a Euro-profile cylinder need a handle that respects that layout. The BBLS31B-C85 uses a long escutcheon with a dedicated cylinder cut-out, keeping the credential reader, lever and key cylinder in a single vertical line.
The handle supports individually managed entry for homes, guest accommodation and staff areas where access changes more often than the door hardware. TTLock provides the activation record, with remote management available as an expansion.
Choose the mortice backset that matches the door, then supply the required 100 mm Euro-profile cylinder separately. The black and silver variants use the same range of six compatible mortice sizes.
Important: Please confirm the correct mortice-lock backset before ordering. Mortice locks cannot be exchanged or returned once ordered. This model is supplied without the required 100 mm Euro-profile cylinder.
Measure from the front edge of the door to the centreline of the handle spindle or cross-bore hole. Select the matching 25 mm, 35 mm, 40 mm, 50 mm, 60 mm or 70 mm mortice. The diagram shows the same backset principle in inches.

| ITEM | DESCRIPTION |
| Main Features | |
| Flexible entry | Unlock by fingerprint, PIN, RFID card, mobile app, e-key or mechanical key. |
| Remote access option | Add a compatible Wi-Fi gateway for remote control and voice commands through Google Assistant or Amazon Alexa. |
| Activity records | TTLock software records user activations for easier oversight of a shared entrance. |
| Cylinder-ready escutcheon | A dedicated Euro-profile cut-out keeps the mechanical cylinder accessible below the smart lever. |
| Emergency access | USB emergency power and a mechanical key provide two fallback access methods. |
| DETAIL | VALUE |
| Product Specifications | |
| Fingerprint users | 200 fingerprint profiles |
| PIN-code users | 150 PIN codes |
| RFID security-tag users | 200 RFID tags |
| E-key users | Unlimited e-keys |
| Ingress protection | IP55 |
| Handle material | 304 stainless steel |
| Durability testing | 250,000 cycles |
| Salt-spray testing | 200 hours |
| Fire rating | 1 hour |
| Door thickness | Adjustable mounting |
| Cylinder preparation | Euro-profile cut-out |
| Finish options | Matt Black or Satin Silver |
| Compatible mortice backsets | 25 mm, 35 mm, 40 mm, 50 mm, 60 mm or 70 mm |
| Included mortice lock | The backset selected in the product variant |
Have a question about this product or want help matching it to your space? Send the item through and our team will respond with the right advice.