German engineering for the North American RV industry
Smart Access Solutions

Connected locking for modern RV platforms

Central control, app access and vehicle fleets: STS develops locking systems that become part of the vehicle electronics – starting with central locking for storage and garage hatches.

Kubus XLe exterior lock
Why it matters

The hatch should lock when the vehicle locks

RV owners expect the same comfort they know from their car. Every hatch that needs its own key is a hatch that can be forgotten. Smart access closes that gap – and gives manufacturers a modern, integrated feature for their platforms.

Central control

Hatch locks integrated into the vehicle central locking system.

App access

Connected access concepts for owners and rental customers.

Vehicle fleets

Access management for rental and fleet operators.

M1 security

Electromechanical locking that meets the M1 standard.

Smart Control Unit CU2 system architecture
New for 2026

Smart Control Unit CU2: one system, all doors

The CU2 bundles permissions, evaluates door states and switches the lock of up to eight doors and hatches. It connects to the base vehicle via CAN bus – so even the manufacturer's vehicle key opens every hatch – and works without a server, user account or running costs.

  • Opened by vehicle key, app, PIN on the vehicle or keyless-go
  • Zone selection: entire vehicle, living area, left or right
  • Real-time status monitoring of all locks
  • 16 expirable access codes – ideal for rental fleets
  • Signed over-the-air updates with automatic rollback

Discover the CU2

Kubus XLe system diagram
Flagship

Kubus XLe: no key, no cylinder

Kubus XLe is an electromechanical exterior locking system with electric actuation of two M1 rotary latch locks. It connects directly to the motorhome's central locking – the garage locks and unlocks together with the vehicle.

  • Integration into the vehicle central locking system
  • Two synchronized M1 turn-lock mechanisms
  • Internal cable connection, low installation height
  • OEM and series production ready

Discover Kubus XLe

STS booth with storage hatch demonstrators
For your platform

Adapt smart access to North American vehicles

Fleet functions and the integration into North American vehicle electronics are defined together with our OEM partners. If you are planning a new platform or a rental fleet concept, talk to us early – about requirements, interfaces and pilot projects.

Start a conversation

Ready to integrate hatch locking into your vehicle electronics?

Tell us about your central locking architecture – voltage, connector and control logic – and we will show you which STS solution fits.