A UHF (Ultra High Frequency) tag, also known as a UHF RFID tag, is an electronic device that contains a unique identifier and can transmit data wirelessly using UHF radio frequency technology. These tags are commonly used for identification, tracking, and data capture purposes in a variety of industries.

Here are key features and characteristics of UHF tags:

1. Frequency Range: UHF tags operate in the ultra-high frequency range, typically between 860 MHz and 960 MHz. This frequency range allows for longer read range and faster data transfer compared to lower frequency RFID tags.

2. Read Range: UHF tags have an extended read range, which can reach several meters or more depending on the specific tag and environmental conditions. This enables efficient data capture even when the tag is not in direct line-of-sight with the reader.

3. Passive or Active: UHF tags can be passive or active. Passive UHF tags do not have an internal power source and rely on the energy provided by the RFID reader's electromagnetic field to power their operation. Active UHF tags, on the other hand, have their own power source (typically a battery) and can transmit data independently.

4. Data Storage Capacity: UHF tags can store varying amounts of data, ranging from a simple identifier to more extensive information, such as product details, manufacturing dates, or unique specifications. The amount of data storage depends on the specific tag model and memory capacity.

5. Form Factors: UHF tags are available in various form factors to suit different applications. They can be in the form of adhesive labels, rigid tags, flexible tags, or even embedded within objects or packaging materials.

6. Application Diversity: UHF tags find applications in diverse industries, including retail, logistics, manufacturing, healthcare, and asset management. They are used for inventory management, supply chain optimization, asset tracking, access control, authentication, and many other use cases that require reliable identification and data capture.

7. Compatibility: UHF tags are designed to be compatible with UHF RFID readers and systems. They adhere to standardized communication protocols, allowing interoperability with different UHF RFID infrastructure and equipment.

UHF tags play a crucial role in enabling efficient and accurate data capture, identification, and tracking in various industries. Their extended read range, data storage capacity, and compatibility with UHF RFID technology make them an effective tool for improving operational efficiency, enhancing supply chain visibility, and optimizing asset management.