Standalone Controllers
Standalone controllers provide local credential and door management for compact sites that do not require a networked management server.
Hardware · 5 listed products
What it delivers.
Server-free single-door, dual-door, and expandable controllers for smaller access control installations.
Products in this family.
AC-S43
Single-door keypad controller with a compact vertical format for local PIN-based access.
View productAC-Q42HB / AC-Q42SB
Anti-vandal standalone controllers with illuminated metal keys, built-in proximity reading, and support for up to 500 users.
View productSingle-Door Controllers
Compact controllers for individual access points and smaller facilities.
View productDual-Door Controllers
Local control for paired openings and compact deployments.
View productExpandable Standalone Systems
Flexible local systems for installations that need more capacity without a server.
View productProduct specifications.
Deployment
Server-free local access control
Door options
Single-door, dual-door, and expandable families
Authentication
Card, PIN, or combined credential workflows by model
Best fit
Smaller sites and self-contained openings
Competitive advantages.
Server-free operation
Single- and dual-door options
PIN, card, and combined authentication
Compact installation formats
Specify the right product.
Talk with QXR about compatibility, architecture, availability, and the right configuration for your project.