Keys get lost, copied and never returned. We replace them with cards, fobs and mobile credentials you manage from a browser or app, designed and installed by our own team.
Your doorsSecured by SADOS
A lost key means rekeying. A lost card takes seconds. See the fix
Physical keys leave no record and cannot be taken back. Switch views to see what access control changes.

6 gaps, open0 gaps, controlled
Illustration of common access gaps, not a customer report.Book a free assessment
Design, hardware, installation and support from one local team.
Add cameras to every doorOur camera systems record video the moment a door event happens.
Buying a reader is the easy part. Designing every door around how your building works is the job we take on.
Most small offices with five doors or fewer are done in one to two days.
Every entry, interior door and sensitive room assessed.
Hardware matched to your doors, traffic and compliance needs.
Our low-voltage team installs, tests and trains your admins.
Ongoing help through our help desk.
Readers, controllers, video intercoms and credentials, ready to order.
Every product ships with optional on-site installation by our low-voltage team. Schedule a free site survey
Every system is designed for your building. Hardware is also available in our online store.
Design, hardware, installation, training and support.
Start with a free site survey.
Rhombus door readers, controllers and credentials.
Optional on-site installation by our low-voltage team.
Cameras, access control and sensors, installed by our own low-voltage team.
It felt like a real partnership from the very start.
Straight answers on installs, power and audits.
Still unsure? Talk to an engineer
Most small offices with five doors or fewer are done in one to two business days. Larger sites with several floors or secure zones can take three to five days. You get an exact timeline after the site survey.
Yes. The app lets you lock and unlock doors, issue or revoke credentials, set schedules and see entry logs from anywhere, with no on-site server.
Every system includes battery backup for the controller. Locks are set fail-safe or fail-secure to match your needs and local fire code.
Yes. Each event records the time, credential and door, which supports HIPAA, NIST and CIS documentation. We set up scheduled exports and retention for your audits.
Usually yes. Compatible cameras link to door events. If an upgrade is needed, we handle it in the same project.
Yes. Every location runs from one cloud dashboard, and credentials can work across sites based on permissions.
Book a free site survey. We design access control around your building.