GR-251U High Performance Portable Reader

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  • Regular price $2,640.00
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The GR 251U. There is no better.

The TROVAN GR-251U High Performance Multi-system Portable Reader is designed specifically to operate in the most demanding environments, such as marine research applications and animal shelters.
It is designed to quickly locate and accurately read a transponder,, if there is one present, under the most adverse conditions. For this reason, read range and read area coverage have been maximised. This enables operators to quickly locate and read the transponder, even if it is not located where expected due to misapplication and even if the scanning time is severely limited.
Unruly animals and harried work conditions often cause readers to be dropped or knocked off a counter onto the floor. The reader may be hosed down to insure sanitary conditions. For these reasons, the GR-251U reader case is manufactured with heavy duty ABS and glass-filled polycarbonates that are securely fastened together. It is sealed to prevent moisture, caustic chemicals and salt air from intruding inside the case and damaging the electronics.


  • Rugged, ergonomic design

  • Long reading ranges

  • Maximised read area

  • Sealed to prevent moisture, caustic chemicals, and salt air from intruding and damaging electronics

  • Multi-system read capability: Trovan, AVID encrypted, Destron FECAVA/clones and FDX-B

This reader comes with battery charger and free software. A USB communications cable for linking the GR251U reader to the computer is also supplied.


Technical Specs

Dimensions 175mm x 297mm x 114mm
Weight 1300g
Battery/Power Requirements Easily replaceable 12 V rechargeable NIMH battery pack
Supply Current

Antenna activated 173 mA 

Antenna deactivated 26 mA

Display LCD (2 lines x 16 characters)
Indicators Red and green LEDs, buzzer
Processor Philips P89C668
Memory 8 KB RAM, 64 KB Flash 3,072 readings with time and date stamps
Interface USB
Humidity 95% non-condensing, splash proof
Material ABS UL 94 H
Operating Temperature  -28˚C to +66˚C (-20˚F to +150˚F)
Read Area


Reading Distance

ID-100 up to 21 cm (9.45 in.)

Home Again/Digital Angel (12 mm glass tag) up to 19 cm (7.9 in.)

AVID encrypted (12 mm glass tag). up to 14 cm (5.9 in.)

FDX-B (12 mm glass tags, various brands) up to 20 cm (9.1 in.)


Product Resources

Software Link

Software Manual

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