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    AI Overview
    2.45 GHz RFID Readers | Active RFID Readers - GAO
    A 2.4GHz long-range active RFID reader for indoor use is a device using the 2.4-2.5 GHz ISM band for asset tracking, personnel location, and inventory, offering extended read ranges (meters to 100m+) with features like ceiling mounting, PoE, WiFi/Ethernet connectivity, and multi-tag reading, supporting real-time & buffered data for warehouses, manufacturing, and facility management. 
    Key Features & Benefits 
    • Frequency: Operates in the 2.4-2.45 GHz band, ideal for indoor environments.
    • Range: Offers long reading distances (up to 100m/328ft) and can be gain-adjustable for flexibility.
    • Active Tags: Uses battery-powered tags that broadcast signals, ensuring longer reads than passive RFID.
    • Installation: Often ceiling-mounted for wide coverage and can support Power over Ethernet (PoE).
    • Connectivity: Connects via RJ45, RS422, or WiFi (802.11b) for host system communication.
    • Data Modes: Supports real-time data upload or buffering for later retrieval.
    • Applications: Real-time asset tracking, WIP tracking, warehouse management, logistics, personnel location. 
    How It Works 
    1. Signal Broadcast: Active tags continuously broadcast their unique ID on the 2.4GHz frequency.
    2. Reader Detection: Fixed readers, often ceiling-mounted for broad coverage, pick up these signals.
    3. Data Transmission: The reader sends tag data to a host system via Ethernet or WiFi.
    4. Real-Time Tracking: Enables live monitoring of items or people in large indoor spaces. 
    Examples 
    • ACS CTR2420W-R1: Ceiling-mounted, PoE, RS422/RJ45/WiFi, for warehouses.
    • GAO RFID Readers: Adjustable gain, up to 100m range, WiFi/PoE options, for asset tracking. 
    • 2.4G Hz Ceiling Indoor RFID Reader | CTR2420W-R1
      News. Products. CTR2420W-R1. 2.4G Hz Ceiling Indoor RFID Reader. The CTR2420W-R1 is a high-performance 2.4GHz active RFID fixed re...
      acs-tech.com.hk
    • Reader Receiver Gain Adjustable Active Wifi 2 45ghz Rfid
      Overview. ... The 2.45 GHz Gain Adjustable RFID Reader uses a built in omni-directional antenna allowing it to identify transponde...
      GAO RFID
    • 2.45 GHz Active RFID Tags | Beaconing Tags - GAO RFID Inc.
      Work-in-Progress Tracking: In manufacturing environments, our 2.45 GHz active RFID tags are used to track the progress of work-in-
      GAO RFID
    • 2.4G Active Products - Vanch
      The ceiling-mounted integrated 2.4G active RFID reader is a product that integrates antenna and reader. It mainly uses the 2.4GHz ...
      Vanch
    • 2.45 GHz RFID Readers | Active RFID Readers - GAO
      This USB portable reader has a read range of up to 65 ft (20 m) and can upload its last 100 received messages in either its real-t...
      GAO RFID
    • Tagsense Store — Active RFID
      TagSense offers a variety of active RFID tags and readers . All Tagsense Active RFID products operate at 2.4 Ghz, which enables sm...
      Tagsense
    • What Is an RFID Reader's Maximum Range? - RFID Journal
      An active RFID system can read tags from 1,500 feet away or more, as the tags broadcast a signal and the systems are designed for ...
      RFID Journal
    • GAO Tek 2.45 GHz. Gain Adjustable Active RFID WiFi Reader
      Technical Specifications. ... Direct Mode and Buffering Mode. In direct mode, readers upload messages to the host system in real t...
      GAO Tek
    • Asset Tracking Comparison: 2.4 GHz RTLS vs Passive RFID Solutions
      Apr 19, 2022 — Additionally, while 2.4 Ghz Low Energy tags require batteries, they are inexpensive and last far longer than competing...
      MachineQ, a Comcast Company
    • 2.4G Hz Ceiling Indoor RFID Reader | CTR2420W-R1
      News. Products. CTR2420W-R1. 2.4G Hz Ceiling Indoor RFID Reader. The CTR2420W-R1 is a high-performance 2.4GHz active RFID fixed re...
      acs-tech.com.hk
    • Reader Receiver Gain Adjustable Active Wifi 2 45ghz Rfid
      Overview. ... The 2.45 GHz Gain Adjustable RFID Reader uses a built in omni-directional antenna allowing it to identify transponde...
      GAO RFID
    • 2.45 GHz Active RFID Tags | Beaconing Tags - GAO RFID Inc.
      Work-in-Progress Tracking: In manufacturing environments, our 2.45 GHz active RFID tags are used to track the progress of work-in-
      GAO RFID
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    2.45 GHz RFID Readers | Active RFID Readers


    GAO RFID
    https://gaorfid.com › RFID Readers by Frequency
    GAO RFID
    https://gaorfid.com › RFID Readers by Frequency
    Active 2.45 GHz RFID Readers can read battery powered RFID tags from a long range (20m-100m) and have high speed reading capabilities.Read more

    2.4G Omni-directional Active RFID Reader,2.4GHz ...


    Shenzhen Jietong Technology Co.,Ltd
    https://www.jtspeedwork.com › 2-4g-active-rfid-reader-...
    Shenzhen Jietong Technology Co.,Ltd
    https://www.jtspeedwork.com › 2-4g-active-rfid-reader-...
    2.4GHz RFID reader. Data transmission module with integrity structure and full-function. It includes RF Module,central control unit, input/output ports, ...Read more

    2.4G Hz Ceiling Indoor RFID Reader | CTR2420W-R1


    acs-tech.com.hk
    https://www.acs-tech.com.hk › products › 2-4ghz-ceilin...
    acs-tech.com.hk
    https://www.acs-tech.com.hk › products › 2-4ghz-ceilin...
    The CTR2420W-R1 is a high-performance 2.4GHz active RFID fixed reader designed for ceiling-mounted indoor applications. Operating in the 2.4GHz-2.5GHz ...Read more
    2.4GHz Long Range Active RFID Reader Indoor from www.acs-tech.com.hk
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    2.4G RFID Reader - IFAST


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    2.4GHz Active RFID


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    2.4G Long Range Active Reader Indoor Use


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    2.45 GHz Active RFID Tags | Beaconing Tags - GAO RFID


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    2.45GHz Active RFID tags are battery powered, have a long range (from 20 to 100 meters) and high speed reading.
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    2.4G Active Products


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    People also ask
    What is the longest range for an RFID reader?
    An active RFID system can read tags from 1,500 feet away or more, as the tags broadcast a signal and the systems are designed for longer-range applications.

    What Is an RFID Reader's Maximum Range? - RFID Journal


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    What are the disadvantages of using RFID tags?
    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    The main disadvantages of RFID tags include high initial costs, vulnerability to signal interference from metal and liquids, significant privacy and security risks (unauthorized reading/tracking), and challenges with standardization across different systems, plus potential environmental impacts and technical complexities like battery life for active tags. While offering benefits, these drawbacks require careful consideration for implementation. 
    Technical Limitations
    • Material Interference:
      Metal can block signals, and liquids can absorb them, causing inaccurate reads; specialized tags are needed. 
    • Reader/Tag Issues:
      In complex environments, ensuring accurate reads and preventing "stray reads" (unintended scans) requires proper design. 
    • Active Tag Drawbacks:
      Active tags (with batteries) add bulk, have limited battery life (3-5 years), and can create system "noise". 
    Cost & Implementation
    • High Initial Investment: RFID systems (readers, software, tags) are generally more expensive than barcode systems. 
    • Complex Setup: Implementation is often more time-consuming and complex than barcoding. 
    • Tag Specificity: "No one tag fits all," meaning tags are application-specific, adding to complexity. 
    Security & Privacy
    • Unauthorized Reading:
      Tags can be read from a distance without the user's knowledge, raising concerns about tracking and privacy. 
    • Data Security:
      Wireless transmission is vulnerable to hacking, requiring strong encryption and security measures. 
    Other Drawbacks
    • Lack of Understanding: Resistance can come from a general lack of understanding about the technology. 
    • Standardization Issues: Different frequencies and protocols can hinder global compatibility. 
    • Environmental Impact: More resource-intensive than simple barcodes. 
    Key Takeaway
    Despite these drawbacks, technology is improving, and solutions like specialized tags and strong security protocols help mitigate many issues, making RFID valuable for specific, high-value applications. 
    • RFID vs Barcode: Comparison, Advantages & Disadvantages
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    Related Links

      AI responses may include mistakes. Learn more
      RFID vs Barcode: Comparison, Advantages & Disadvantages
      Aug 7, 2025 — Material Limitations: Materials like metal and liquid can impact signals. For example, metal can deactivate the RFID an...
      Peak Technologies
      The Advantages and Disadvantages of Active and Passive RFID ...
      Nov 20, 2017 — ​​Disadvantages. Expensive - While passive tags may cost less than 10 cents per unit, active tags can cost as much as ...
      Altium
      RFID & Warehouse Management: Pros & Cons To Consider - Extensiv
      Drawbacks of Using RFID Throughout Your Warehouse * High initial cost: One of the biggest disadvantages to using RFID tagging is ...
      Extensiv
      RFID vs. barcodes: Which system is better? - Outvio
      Mar 20, 2023 — Other disadvantages of RFID * RFID tags can be unreliable when in contact with metal or liquids. * RFID tags can be r...
      Outvio
      Disadvantages of RFID. Mostly Minor Or You Can Minimize Them.
      RFID systems are often more expensive than barcode systems. RFID technology is harder to understand. Can be (debatably) less relia...
      Wireless Technology Advisor
      RFID vs Barcode: Comparison, Advantages & Disadvantages
      Aug 7, 2025 — Disadvantages of RFID * Material Limitations: Materials like metal and liquid can impact signals. For example, metal c...
      Peak Technologies
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      Sep 3, 2024 — RFID systems can be at risk of unauthorized access, which may lead to data breaches and exposure to sensitive informati...
      Lowry Solutions
      RFID vs. Barcode: Pros, Cons, and Best Uses - RedBeam
      Apr 8, 2024 — RFID Disadvantages * High Cost: There are higher initial costs for setting up RFID vs. barcode systems, which is a key...
      RedBeam
      Disadvantages of RFID Cards - TJ RFID Supplies Manufacturer
      Sep 17, 2025 — Conclusion. disadvantages of RFID cards must be carefully weighed against potential benefits. RFID tags are more expen...
      tjnfctag.com
      Introduction To The Advantages And Disadvantages Of RFID ...
      Aug 1, 2023 — 1. The cost of RFID is too high, coupled with the high cost of equipment such as RFID transmitters, readers, encoders a...
      toptaggroup.com
      Show more
      Can phones read LF RFID?
      At this point, smartphones have some limitations. Low-frequency (LF) RFID tags typically operate at 125-134 kHz, while ultra-high-frequency (UHF) RFID tags operate between 860 MHz and 960 MHz. Smartphones cannot read these tags.

      Can Smartphones Really Read RFID Tags?


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      https://www.rfidcard.com › can-smartphones-really-read-...
      RFID Card
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      How far away can RFID be read?
      An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
      AI Overview
      RFID reader range varies dramatically, from a few inches for short-range HF/LF tags (like smart cards) to over 100 meters for active tags (like vehicle tracking), with passive UHF tags typically ranging from a few feet to 30+ feet, depending heavily on tag size, antenna, operating frequency (LF, HF, UHF), reader power, and environment. 
      Factors Influencing Read Range
      • Tag Type (Active vs. Passive):
        • Active Tags: Have internal batteries, broadcast signals, offering long ranges (100m+). 
        • Passive Tags: No battery; rely on reader power, range varies greatly. 
      • Frequency: Lower frequencies (LF/HF) have shorter ranges; higher frequencies (UHF/Microwave) offer longer ranges. 
      • Antenna Size & Design: Larger antennas capture more energy, increasing read range. 
      • Reader Power: Higher power settings extend range but can cause unwanted reads. 
      • Environment: Metal and liquids can block signals; concrete walls can reduce reads. 
      Typical Read Ranges by Frequency
      • Low Frequency (LF - e.g., 125 kHz): Short, few inches to 3-5 feet (access control, animal ID). 
      • High Frequency (HF - e.g., 13.56 MHz): Short, under 3 feet (smart cards, item tagging). 
      • Ultra-High Frequency (UHF - 860-960 MHz): Medium, 10-30 feet (pallets, inventory), but can reach 60+ feet with powerful readers. 
      • Microwave (2.45 GHz): Medium to long, 1-300 feet (rail cars, toll roads). 
      In Summary
      To get a specific range, you must know the frequency band and whether the tag is passive or active, as well as the reader's power and the tag's antenna size. 
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      • What Is an RFID Reader's Maximum Range? - RFID JOURNAL
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      • FAQ: Does RFID Read Through Walls? – inLogic Blog
        RFID readers can read through walls, but it is fairly easy ensure it is reading tags in only one room at a time. Walls constructed...
        inlogic.com
      • Read Range: What Affects RFID Performance? - All About RFID ...
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