Good to know
- Remote management needs the Gateway, sold separately, and a 2.4 GHz WiFi network.
Smart Euro cylinder
Simpled NF Smart Cylinder
A smart Euro cylinder with its keypad built in.
It replaces a compatible Euro cylinder and keeps your handle and lock case. A PIN, an RFID tag, your phone or the mechanical key.
£199.99
simpled.uk on Trustpilot: 4.8 · 396 reviews (opens in a new tab)
- simpled.uk rated Excellent: 4.8/5 on Trustpilot
- 60-day money-back guarantee
- 24-month warranty
- Free UK delivery
Why the NF-SP.
Keep Your Handle. Add Smart Access.
Upgrade a compatible Euro cylinder door without replacing your existing handle or complete locking mechanism.
Leave the Keys in Your Pocket
Access your door using a PIN, RFID tag or smartphone instead of searching for a physical key.
Share Access, Not Spare Keys
Give family, guests or service providers digital access without arranging key handovers.
Access That Fits Their Schedule
Set permissions for a single visit, a regular appointment or a longer stay.
Know When Your Door Was Accessed
Review unlocking history to see when access was used and which credential was involved.
Manage Access While You’re Away
Add an optional Gateway to manage access remotely when you cannot be at the property.
Make it yours
Add it to your door.
UK delivery is free, with 60 days to change your mind.
12 photos
Smart Euro cylinder
Simpled NF Smart Cylinder
simpled.uk on Trustpilot: 4.8 · 396 reviews (opens in a new tab)
£199.99
Price in GBP, including VAT.
In stock · usually delivered in 2 working days
Not sure which model?Help me choose
The detail
Everything about the NF Smart Cylinder
Details
The Simpled NF-SP Smart Cylinder offers a fast and convenient way to upgrade a traditional Euro profile cylinder into a secure smart access solution without replacing the entire lock. Designed for residential properties, apartments and rental accommodation, it combines modern access control with a straightforward retrofit installation.
Supporting multiple unlocking methods including fingerprint recognition, Bluetooth, passcodes, RFID cards and mechanical keys, the NF-SP provides flexible access for homeowners, family members and authorised visitors. Through the TTLock App, users can manage access permissions, generate temporary passcodes and review access history, giving greater control over property security.
For users who require remote management, the NF-SP can be paired with a compatible Simpled Wi-Fi Gateway, enabling remote unlocking, user management and activity monitoring from virtually anywhere. It also supports integration with popular smart home platforms such as Amazon Alexa and Google Home when used with a compatible gateway.
Designed with security, reliability and ease of installation in mind, the Simpled NF-SP is an ideal upgrade for anyone looking to modernise an existing door without replacing the complete locking system.
Specifications
Technical Characteristics
- Cylinder Type: Euro Profile Smart Cylinder, 35/35 70mm
- Unlocking Methods: Fingerprint, Bluetooth App, Passcode, RFID Card, Mechanical Key
- Mobile App:TTLock App
- Fingerprint Capacity: Up to 100 fingerprints*
- Passcode Capacity: Supported
- RFID Card Support: Supported
- Mechanical Keys: Included
- Remote Control:Via compatible Simpled Wi-Fi Gateway
- Access Records:Real-time activity logs through the TTLock App
- Voice Assistant Support: Amazon Alexa & Google Home (with compatible gateway)
- Power Supply: Rechargeable Lithium Battery
- Emergency Power:USB Emergency Power Interface
- Low Battery Alert:Supported
- Installation Type: Retrofit Euro Cylinder Replacement
- Door Compatibility:Compatible with most Euro profile cylinder doors
- Application:Residential Homes, Apartments, Offices, Holiday Rentals
Shipping & Returns
UK delivery is free on every order, and returns are free too.
Every order is covered by our 60-day no-quibble money-back guarantee. If it is not right for your door, send it back.
Every Simpled product carries a 24-month warranty against defects in materials and workmanship.
Full terms: Shipping policy · Terms and conditions
We love taking your calls
Features of the NF-SP Closer. It holds up.
Every feature of the NF-SP, one by one. Tap a photo for a closer look.
How to fit it On your existing door, before the kettle's cold.
- Step 01
Check your door
Our 60-second checker confirms the NF-SP suits your door, or tells you honestly if it won't. No email address needed.
- Step 02
Fit it yourself
It replaces a compatible Euro profile cylinder, and your existing handle and lock case stay.
- Step 03
Live lighter
Pair the TTLock app, set your PIN and share access on your terms. Add the optional Gateway to manage access while you are away.
Your door. In your hands.
Tap, schedule and share access. Simple.
- Create and share PIN codes remotely
- Create and share eKeys remotely
- PIN code management
- Add or delete cards
- Battery level, volume and system updates
- Bluetooth access
- Wi-Fi access from anywhere
- Time attendance
- eKey management
- Fingerprint management
- Unlocking records
Remote access requires a compatible Wi-Fi connection or gateway.
Key specifications Nothing rounded up.
The exact figures behind the NF-SP, because a lock is a promise you should be able to check.
- Fitting
- Retrofit Euro Cylinder Replacement
- App
- TTLock App
- Key backup
- Included
- Flat battery
- USB Emergency Power Interface
In good company
396 reviews of simpled.uk on Trustpilot. 4.8 out of 5.
4.8
out of 5
Great company that care. I used them on my first airBnB property and have now rolled them out to two more. The after sales service is what really stands out. Advice, spare parts, tech support all 100% ?
Owen Werakso · January 2026 Very reliable and support is fantastic. They have everything in order and you can feel it in their service and aftermarket. Different and refreshing with great products, highly recommended.
Elias Gadgets (Gary) · December 2025 Great smart lock. Absolutely brilliant after sales service.. I had some questions during installation. Simpled got back to me very quickly and talk me through it.
foysol hussain · November 2025
- A London company
- 60-day money-back guarantee
- 24-month warranty
- Free UK delivery
Goes well with
Buy it with
Accessories picked to go with the NF Smart Cylinder.
Manuals & guides
Downloads
Read up on the NF Smart Cylinder before it arrives.
More from the range
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Simpled NF-SP
Come and go. Never worry.
Sixty seconds tells you if it fits. Sixty days tells you if it's right. Two years, we've already promised.
- Rated Excellent, 4.8/5 on Trustpilot