Loggerhead Turtle with OpenTag, Photo by Tony Tucker
Motion dataloggers store sensor data to memory cards, and need to be recovered to collect the data. To aid recovery tags can be configured with integrated releases, floatation, and VHF radio beacons. All Loggerhead motion dataloggers are reusable and integrate rechargeable batteries. Datalogging tags have advantages over satellite tags in being able to store large amounts of data that could not be transmitted via satellite.
AMX is an audio and motion datalogger with options for video, burn wire release, VHF, and playback. It is ideal for animal-borne and underwater vehicle sensor measurements.
OpenTag measures 3D motion of marine animals or platforms with a rich sensor suite to measure: depth, temperature, acceleration, magnetic field, and rotational velocity. OpenTag can be used to measure pitch, roll, and yaw underwater as well as metrics for bioenergetics including ODBA and VDBA.