Step 1 – Create your code
Choose a rhythm of presses—your personal “knock.” Remember it as a Pin Code.
How SLOSS Works
Three simple steps deliver invisible access with offline security.
Step 2 – Press your pattern
Tap it on your existing doorbell.
Step 3 – Door unlocks
SLOSS recognizes your code and releases the door in seconds.
Everything happens locally inside your home. No cloud, no data sharing.
Security without complexity.
Invisible
From the outside, it’s just a normal doorbell.
Unhackable
No network connection means nothing to break into remotely.
Flexible
Give one-time or temporary codes for guests or deliveries.
Durable
German-engineered components built to last.
Simple for professionals, seamless for you.
SLOSS connects to your existing electric door release system inside your home.
For most apartments and homes, that means minimal changes.
Certified installers handle setup quickly, keeping everything hidden and tidy.
Request Installation InfoTechnical guide available for professionals and partners.
Partner with SLOSS
We collaborate with installers and lock manufacturers across Europe. Request specifications, demo units, or partnership discussions.
Contact for Partnership InfoFrequently Asked Questions
Your doorbell stays. SLOSS connects from inside and communicates with your electric lock.
Most homes connect easily. If not already there, the installer adds a small magnetic lock or adapter—hidden inside.
You can always use your regular key. Optional backup batteries can also keep SLOSS active during short outages.
No. SLOSS works entirely offline for maximum security.
Each SLOSS system comes with a small memory card. You use our simple setup program on your computer to create or edit your codes. Then you insert the memory card into your SLOSS unit to update it. This process keeps your system completely offline—no Wi-Fi, no remote connections, and no way for anyone to tamper with it from the outside.
No. The bell silences itself with the second press.
Create temporary or one-time codes—valid only for chosen days or hours.
Yes. The SLOSS Duo version manages two doors with separate codes.
Yes. The SLOSS can keep a log of time-stamped entries and entry attempts.
Designed and assembled in Munich, Germany.
Get in touch
Have questions about SLOSS or want to discuss installation or partnership opportunities?