S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.
S4A mainly produces a series of security Door Access Control such as:
Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etc.
Available Products:
S4A Industrial Co., Limited offers a comprehensive range of access control and security system products designed for modern buildings, enterprise networks, industrial environments and commercial installations. Their product lineup includes networked controllers, standalone access devices, locking hardware, identification readers, turnstiles and essential power/accessory components.
S4A’s network access controllers are the core devices for server-managed access control systems.
Support centralized management over TCP/IP
Multi-door controller models
Real-time monitoring and event logging
Integration with access control software
Support for multiple credential types (cards, PIN, bi-modal)
These controllers are ideal for office buildings, campuses and multi-door environments.
Standalone controllers are self-contained access devices that work independently without networking.
Card + PIN controllers
Keypad-based controllers
Compact all-in-one access units
Support for local access scheduling
Ideal for small offices or single-door installations
S4A offers a range of electromagnetic locking solutions that secure doors with high holding forces.
600lb to 1000lb+ holding capacity
Fail-safe and fail-secure models
Durable construction for heavy use
Suitable for emergency exits and security doors
These locks are essential for controlled entry and secure holding.
S4A provides multiple types of RFID readers and Wiegand interface devices for secure credential reading.
Proximity RFID readers
High-range UHF readers
Card + PIN combo readers
Wiegand input/output compatibility
LED/ beeper feedback
These devices support effective identity authentication at access points.
Turnstile solutions allow regulated pedestrian flow and secure entry control.
Tripod turnstiles
Waist-height barriers
Full-height turnstiles
Swing gates and sliding gates
Turnstiles are widely used in high-traffic environments like transit areas, stadiums and corporate lobbies.
A full access control system requires stable power and safe exit options.
DC power supply boxes
Battery backup units
Exit push buttons (touch, break-glass, emergency)
Remote release buttons and key switches
These accessories ensure system reliability and safe egress.
S4A supplies accessories needed for complete system installations:
Door sensors and contacts
Mounting brackets and hardware
Cable harnesses
Status indicators and relays
Integration modules
These components support seamless installation and expansion.