"Vemco V13 Coded Transmitter Tag"@en . . "SDN:L22::TOOL1152" . "A small (13 mm diamter) acoustic transmitter used to track and determine the behavioural patterns of small and juvenile fish, for applications such as site residency studies and automated monitoring of migrations. Coded transmitters send acoustic pings at 69 kHz that are infrequent and random about an average delay. This ping train includes an ID number which permits identification of the specific tag along with the sensor telemetry data. The V13 can function as a simple pinger for location only, or it can be equipped with additional sensors to include depth (V13P) and temperature (V13T) data. When used with the VR2 and or VR3 receiver, they can be used to track large numbers of fish over large areas. The V13 can also be tracked using the VR28, the VR100, or VR60 (with Option 07 version 2.01) receivers, or the VRAP system."@en . .