Triton Series Coded Fish Tags

Now with longer life ... compare to
Lotek’s SR Series coded tags.

When used with the R4500C Receiver-Datalogger
in a complete tracking system, offers the highest
detection rates available.


In a coded system, many transmitters can share a single frequency. This allows you to differentiate a large number of tags using fewer frequencies, while still detecting fast moving tags, even when they pass by a station at the same time. Because coded tags consume more power than standard tags, ATS engineers slowed down the tag’s pulse rate to maximize tag life.

Our new Triton Series tags now provide over twice the life of our regular coded models, with no increase in weight. The tags have a slightly longer life than Lotek’s SR type of coded tags, for a comparable weight.

Originally developed to accommodate large scale riverine projects in Alaska, ATS’ coded systems are now used by fish researchers world-wide. A coded system for fish typically consists of hundreds of tags, and several receive sites, where dataloggers like the ATS R4500C Receiver – Datalogger, are installed.

These receivers feature digital signal processing technology, and so can distinguish the passage of 15 co-located fish within 15 seconds, with 100% accuracy. ATS coded systems are known throughout the industry for their extremely low (<2%) rate of false positive "hits."

Compare ATS Triton Series ... to Lotek SR Series ...

ATS Life in days Lotek Life in days
Model Battery 12ppm 30ppm Model 12ppm 30ppm
F1810C 10-12 215 97 SR-11-12 180 73
F1815C 10-18 537 242 SR-11-18 449 183
F1820C 10-25 778 350 SR-11-25 641 262
F1830C 10-35 1074 483 SR-11-35 898 367
F1835C 1/2 AA 1733 693 SR-16-25 N/A 588
F1840C 2/3 AA 2556 1150 SR-16-50 N/A N/A

>> View all F1800 Series Triton models >>

Use in Coded Fish Tracking Systems remote tower site for remote fish monitoring along a river

Triton Series transmitters are used with R4500C Receiver-Dataloggers. Both feature highly sophisticated digital signal processing techniques to provide accurate and reliable fish passage data.

The unattended receivers are typically located at sites along a river, on a 20 foot tower with two yagi antennas, and an antenna switchbox. A self contained power supply and solar panel allow for continuous monitoring over several months. An ATS remote data platform (RDP) can be used to automatically send data to your office using cellular or radio communication.

Features and specifications subject to change without notice











Remote receive site with 20 ft. tower and
ATS R4500C Receiver - Datalogger