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“Single-bit RFID” usually means an electronic article surveillance (EAS) marker that tells a compatible detector whether the marker is present—not which specific product it is attached to. It is a presence signal, unlike EPC/Gen2 RFID, which can communicate an item identifier and, where supported, additional data.
What does “single-bit RFID” mean?
In retail security, the phrase is commonly used as shorthand for EAS: a system that detects a marker as present or absent. The marker does not, on that basis alone, provide a unique product identity. “Single-bit” is a useful description of the information conveyed in this context; it does not mean that every RFID tag literally has only one bit of memory. A technical reference on EAS describes the approach as electronic article surveillance.
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How does an EAS marker work?
A marker is attached to merchandise and used with a compatible detection system. When an active marker passes through a monitored exit, the system can detect its response and may trigger an alarm. EAS systems use different technology families, including microwave, magnetic, acousto-magnetic, and radio frequency; a marker and detector must be designed to work together. An EAS label is therefore not a universal tag that works with every store gate.
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No—not in the common EAS usage of “single-bit RFID.” The detector can establish that a compatible marker is present, but the presence signal alone does not tell it which product the marker belongs to. EPC, by contrast, is a unique identifier syntax that can refer to a physical object or another identifiable entity. GS1’s EPC/RFID overview explains the role of EPC identifiers.
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- 【Real-Time Theft Detection】RFID jewelry tags, when combined with RFID readers at store entrances or specific areas, can provide real-time theft detection. If a tagged item is taken outside the designated area without being properly checked out or deactivated, the RFID system will immediately trigger an alarm, alerting security personnel to potential theft.
- 【Alarm Activation with Tag Detection】When a tagged jewelry item passes through the RFID reader gates (e.g., at the store's exit), the reader automatically detects the tag's unique ID. If the item has not been properly cleared or deactivated (e.g., during checkout), the system activates an alarm, signaling unauthorized removal of the item.
- 【Secure Item Identification】Each RFID tag contains a unique identifier (UID) that can be linked to specific jewelry items. When the RFID reader detects the tag, it can trigger the alarm based on pre-set security protocols, ensuring that only properly purchased items leave the store without triggering a false alarm.
- 【Seamless Integration with Inventory Management and Security Systems】 The RFID jewelry tags work in conjunction with a store’s inventory management system and security alarms. The system continuously monitors the movement of tagged items and ensures that if a product is not deactivated at the point of sale, the RFID reader triggers an alarm. Additionally, real-time tracking of inventory through RFID readers allows store personnel to quickly locate missing items and identify potential security breaches.
- 【Combining】RFID 860-960 MHz jewelry tags with RFID readers for theft prevention and alarm activation provides a robust solution for jewelry stores to protect high-value items, ensure efficient tracking, and prevent loss. The RFID-based anti-theft system offers both security and convenience, making it an ideal choice for retail environments.
How is EAS different from EPC/Gen2 RFID?
| Aspect | EAS marker (“single-bit” usage) | EPC/Gen2 RFID |
|---|---|---|
| Information communicated | Presence or absence of a compatible marker | An EPC identifier and, depending on the tag and application, optional supplemental data |
| Typical purpose | Retail article surveillance | Identifying or referring to objects in information systems |
| Compatibility | The marker must match the EAS detection technology | Tags and readers must support compatible frequency and protocol specifications |
GS1’s EPC Gen2 standard covers the tag’s memory as well as the radio and logical interface. That makes it a broader identifier-bearing system than a presence-only EAS marker.
Does “RFID” specify a tag’s frequency or range?
No. RFID is an umbrella term for technologies with different frequencies and designs. GS1 describes active and passive tags and NFC, UHF, HF, and LF variants; its standards focus on passive UHF and HF. The word “RFID” alone does not establish a tag’s memory, operating range, or compatibility. Check the actual product and reader specifications rather than inferring them from the label “RFID.” GS1’s EPC/RFID overview outlines this range of technologies.
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- 【Material】： UHF RFID high security cable seal made from galvanized steel wire and ABS enclosure which embeds an unique contactless RFID chip. Water proof and resistant to extreme weather. Suitable for indoor and outdoor use.
- 【Size】： Electronic metal security seals tag size:1.42 x 1.3 x 0.5 in (36 x 33.5 x 12.5mm), wire diameter：φ0.07 in (1.8mm), wire length：11.8 in (300mm). Each security cable seal is self-locking, adjustable length. Laser printed with unique progressive serial numbers and never fade. Your design(texts, barcodes, numbers, brand, LOGO, etc) can be customized when order is above 500 PCS, just leave us a message.
- 【High Security Seal】：Numbered UHF RFID metal cable lock seal is different from traditional steel seal. With RFID chip inside that can provide its status informations. RFID chip will be broken when open, so replication is impossible. More secure and reliable than traditional security seal with ID on the surface.
- 【How to Work ?】： Use the handheld to write the informations to RFID electronic seals, the data can be quickly and accurately read by fixed reading units placed at transit gates or by handheld reading devices. UHF chip(860MHz-960MHz), Reading Distance: 0-500mm (Depend on the type of RFID Reader), read and write more than 100,000 times.
- 【Wide Application】： Cable seal RFID anti tamper is an ideal solution for guaranteeing cargo security and tamper evidence along the shipping and supply chain. Tamper evident RFID seals widely used for tracking and management of warehouse, baggage, goods, gas cylinder, container, vehicle, etc.
Why can the phrase be ambiguous?
“Single-bit RFID” is not a universal name for one tag design. In retail-security contexts it usually describes EAS-style presence detection. In a paper or product specification about chipless RFID or a particular one-bit sensor tag, it may refer to a more specific design. In that case, use the source’s definition: EAS behavior should not be assumed for a different one-bit RFID system.
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- Compact & Portable Design: Each package includes 50 NFC tags with a 1.0-inch round NTAG215 card, as small as a quarter coin, making it easy to carry and store. The adhesive backing ensures effortless attachment to various surfaces
- Durable & Waterproof: Made of high-quality PET material, these NFC tags are waterproof, durable, and designed to withstand wear and tear. They function perfectly even in wet conditions, ensuring reliable performance wherever you use them
- Easy Setup & User-Friendly: Simply hover your NFC-enabled device over the tag to initiate data transfer. Equipped with 504 bytes of NDEF memory, these tags allow quick writing and sharing of information. They also feature a read-write lock function for flexible use.(NOTE*. - It can not be edited or reset after setting it as a read-only tag. )
- Wide Compatibility: These NFC tags are compatible with devices such as NFC-enabled phones and TagMo Amiibo. They are rewritable, so you can store and update different data as needed. Note: Amiibo tags can only be edited once and cannot be reused
- Versatile Applications: Ideal for creating Amiibo cards, sharing social media links, music, connecting to Wi-Fi, or automating smart home tasks. These tags enable quick and easy data sharing for a variety of uses, from gaming to daily convenience
Rank #4
- 【Versatile】: UHF RFID tag for long-range tracking and identification.
- 【Frequency Range】: Ultra-high (860-960 MHz) for efficient data transmission.
- 【Durable Construction】: Designed to withstand harsh environments and prolonged usage.
- 【Wide range of applications】: For asset theft prevention, tracking, inventory management and supply chain operations.
- 【Compact Size】: Compact form factor for easy integration into various systems.
Rank #3
- Note: These are 125kHz key fobs (tags). They are ID fobs. They are not IC or NFC fobs. If you want to add them to your lock system, please ensure that your system uses the same frequency of unencrypted 125kHz. Not compatible with other frequencies like 13.56MHz. For example, they don't work for Tuya or TTLock smart locks. Not work for encrypted systems.
- Compatible with other universal 125kHz tags like EM4100/4102. Not compatible with encrypted tags like HID, Indala, Cobra, APCiK, Paradox, Kaba, Isonas, etc.
- Read only. Not rewritable. You cannot re-program them. Each key fob is already pre-programmed with a unique ID number. The 10-digit number is engraved on the tag casing..
- Suitable for 125kHz RFID proximity access control system and ID management system. For example, add it to your RFID door lock if applicable.
- Approx. Size: 1.4*1.1*0.2 inch. Casing Material: ABS Plastic. Package includes 100 PCS.
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