Overview

Designed  to replace your existing Euro profile door cylinder, this smart locking  system upgrades traditional key access with smartphone-based control,  enabling secure entry management, temporary or permanent guest access,  real-time notifications, and compatibility with the BLACK X app and  supporting accessories for a more connected and controlled home environment.

Certifications
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Features
Slim Integrated Design
Features a refined 30mm profile that blends seamlessly with existing door hardware.
Up to 3-Year Battery Life
Long-lasting performance without frequent battery replacements, reducing ongoing maintenance requirements.
Comprehensive Access Control
Supports multiple unlocking options, providing flexible access management for different user needs.
Mechanically Superior Core
Engineered with anti-bump, anti-snap, anti-pick, and anti-freeze protection to resist modern intrusion techniques.
No Wiring, No Drilling
Designed for installation without wiring or drilling, allowing placement without permanent door modifications.
No Calibration Required
Eliminates the hassle of setup and ongoing adjustments, ensuring consistent performance without recalibration needs.
Additional information
Physical Specifications

Height: 88 mm

Witdh: 30 mm

Depth: 32 mm (without thumb turn)

Weight: 438 g (complete lock 35/35)

cylinder sizes availble:

35/35, 40/40, 50/50

Connectivity

Wireless:

Bluetooth 5.0 and Wi-Fi 2.4 GHz

Compatibility:

IOS and android (via BLACK X App)

BLACK X Accessory support:

xPad, xPad+, xKey.

Power & Performance

Battery Type:

1x CR2 Lithium (supplied)

Battery Life:

Up to 3 years

Mechanical access:

2x Laser Cut Keys

Encryption:

128-bit AES

SKU Models
Cylinder size SKU Number Finish Model name
35/35 SLBX-3535SN-UK-R Satin Nickel BLACK X Smart Door Lock SN UK 35/35
SLBX-3535PC-UK-R Polished Chrome BLACK X Smart Door Lock PC UK 35/35
SLBX-3535PB-UK-R Polished Brass BLACK X Smart Door Lock PB UK 35/35
SLBX-3535MB-UK-R Matte Black BLACK X Smart Door Lock MB UK 35/35
SLBX-3535MW-UK-R Matte White BLACK X Smart Door Lock MW UK 35/35
40/40 SLBX-4040SN-UK-R Satin Nickel BLACK X Smart Door Lock SN UK 40/40
SLBX-4040PC-UK-R Polished Chrome BLACK X Smart Door Lock PC UK 40/40
SLBX-4040PB-UK-R Polished Brass BLACK X Smart Door Lock PB UK 40/40
SLBX-4040MB-UK-R Matte Black BLACK X Smart Door Lock MB UK 40/40
SLBX-4040MW-UK-R Matte White BLACK X Smart Door Lock MW UK 40/40
50/50 SLBX-5050SN-UK-R Satin Nickel BLACK X Smart Door Lock SN UK 50/50
SLBX-5050PC-UK-R Polished Chrome BLACK X Smart Door Lock PC UK 50/50
SLBX-5050PB-UK-R Polished Brass BLACK X Smart Door Lock PB UK 50/50
SLBX-5050MB-UK-R Matte Black BLACK X Smart Door Lock MB UK 50/50
SLBX-5050MW-UK-R Matte White BLACK X Smart Door Lock MW UK 50/50

Find your distributor

Available at certified partners. Find the one closest to you.