Enable direct quantifiation of tail beats in fish.

Acoustic telemetry receivers for JSATS tags.

Loggers allow for simultaneous recording of heart rate (via ECG sensors) and visceral temperature in free-swimming fish; they are the only commercially available electronic data logger that can quantify heart rate in fishes.

Submersible receivers capable of communicating remotely to a surface modem.

High residency acoustic telemetry receievers.

Acoustic telemetry receivers for 69kHz with acoustic release.

Acoustic telemetry receivers for 69kHz.