• Feb 09, 2024 S4A 2024 New Year Holiday Notice
    Dear All S4A's Partner:
    As the year draws to a close, we find ourselves reflecting on the incredible journey we've had, and it fills us with gratitude for the unwavering 
    support we've received from each one of you.
    To our val...
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  • Nov 03, 2023 The 19th China Public Security Expo (CPSE) - S4A Booth Number 3D43
    CPSE Security Fair, founded in 1989 in Shenzhen Special Zone, 
    34 years of growth, 18 security exhibitions, is the world's largest security exhibition, the most authoritative and influential security exhibition in Asia. IN-PERSON EVENT: Shenz...
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  • Oct 09, 2023 The differences between DC Barrier Gates and AC Barrier Gates
    DC (Direct Current) and AC (Alternating Current) barrier gates are two types of gate systems used for access control, such as in parking lots, toll booths, or gated communities. Here are the key differences between them:

    1. Power Source:
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  • Sep 29, 2023 Benefits of Boom Gates
    Boom gates, or barrier gates, offer several benefits in various applications and settings:

    1. Access Control: Boom gates provide effective access control, allowing only authorized vehicles to enter or exit a specific area, such as parking lots, r...
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  • Sep 29, 2023 Main functions of Brushless DC Barrier Gate
    Brushless DC Barrier Gates, like other automatic barrier gates, serve the primary function of controlling vehicle access to a specific area. The main functions of a Brushless DC Barrier Gate include:

    1. Access Control: The gate restricts or grant...
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  • Sep 27, 2023 Why Recommend S4A Fingerprint Glass Door Lock
    Fingerprint glass door locks offer several advantages:<br/><br/>1. Security: They provide a high level of security as they rely on biometric data (fingerprints) for access, making it difficult for unauthorized individuals to gain entry.<br/><br/>2. Conven...
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  • Jul 21, 2023 How to choose and install Electric Bolt Lock?
    When choosing an Electric Bolt Lock, consider the following factors:

    1. Type: Decide on the appropriate type of Electric Bolt Lock, such as Fail-Secure or Fail-Safe, based on your specific security requirements.

    2. Voltage and Power Supp...
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  • Jul 19, 2023 The difference between ID card and IC card
    ID card and IC card (Integrated Circuit card) are both types of identification cards, but they differ in their underlying technology and functionality.

    1. ID Card:
       - ID card stands for "Identification Card."
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