High-Durability Half Duplex PIT Tags for Long Range Fish Tracking and Wildlife Monitoring

Product Overview

HDX PIT Tags (Half Duplex) are the preferred solution for research teams needing maximum read range, high signal stability, and excellent field performance in harsh river conditions.

Widely used in:

• Salmon migration tracking

• Trout & steelhead PIT tagging

• Large-bodied fish identification

• River monitoring stations

• Hydropower fish passage studies

• Hatchery release monitoring

• Wildlife movement research

HDX is ideal for projects requiring robust signal return, long-distance antenna reading, and high accuracy in noisy aquatic environments.

Available HDX PIT Tag Sizes

We provide all standard HDX sizes:

• 2 × 12 mm

• 3 × 13 mm

• 3.85 × 23 mm

• 3.85 × 32 mm

• 4 × 34 mm

These sizes are optimized for:

• River antenna arrays

• In-stream monitoring systems

• Pass-through biological stations

• Power-dam fish ladders

• Hatchery channels

All HDX tags support:

• ISO 11784/11785

• HDX protocol

• Custom encoding (Decimal / Hex)

• Pre-sterilization

• Custom packaging

Key Features

✔ Superior Read Range

HDX technology provides enhanced magnetic coupling, ideal for large antenna loops and high-noise river environments.

✔ High Anti-Interference Performance

Stable communication even in:

• Hydropower turbine areas

• High-current rivers

• Long-distance detection gates

✔ Bioglass Encapsulation

Ensures long-term durability & biocompatibility in freshwater, saltwater, and field monitoring locations.

✔ Wide Compatibility

Works with all ISO-standard HDX antennas and readers, including:

• River monitoring stations

• HDX handheld readers

• Gate antennas

• Tunnel scanners

✔ Research-Grade Data Accuracy

Used widely by universities, conservation agencies, research institutes, and fishery management teams.

Applications

Long-Range Fish Tracking

Best option for salmon, steelhead, trout, catfish, sturgeon, eel, and other medium-to-large fish species.

River & Stream Monitoring

Ideal for large-loop antennas, fish ladders, migration path studies, and hydropower fishways.

Wildlife & Ecology

Suitable for medium-sized mammals and amphibians requiring long-range identification.

Conservation & Hatchery Programs

Support population analysis, survival rate tracking, and post-release monitoring.

Technical Specifications

Why Choose Our Factory

• 15+ years manufacturing HDX & FDX-B

• High-grade ferrite cores for strong signal stability

• Full OEM services for research agencies & integrators

• Fast delivery and low MOQ

• Stable performance even under high-current river systems

Internal Links

• /pit-tags/

• /pit-tag-8mm/

• /pit-tag-12mm/

• /fdx-b-vs-hdx/

• /pit-tag-reader/

• /pit-tag-gun/

/how-to-implant-pit-tags/

• ·        PIT Tags 

• ·        PIT Tags for Salmon

• ·        PIT Tags for Trout

• ·        PIT Tag Injector

• ·        PIT Tag Sizes

• ·        /pit-tags/

• ·        /pit-tag-8mm/

• ·        /pit-tag-12mm/

• ·        /fdx-b-vs-hdx/

• ·        /pit-tag-reader/

• ·        /pit-tag-gun/

• ·        /how-to-implant-pit-tags/

External Authority Links

• NOAA Fisheries PIT Tag Program
  https://www.fisheries.noaa.gov

• PTAGIS HDX Data Network
  https://www.ptagis.org

• ISO 11784/11785 Standard
  https://www.iso.org/standard/

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