Current velocity in the deep sea is very small, and reflection strength is not obtained enough because the suspended particle is little, and it is assumed difficult even by the supersonic wave type current meter.
INFINITY-Deep, the resisting pressure performance 6,000m, achieve the measurement in the deep sea.
INFINITY-Deep progress from standard INFINITY-EM. This is equipped with the depth sensor and the inclination sensor, you can grasp condition of the equipment.
Moreover, the power supply capacity is doubled, and this is suitable to a long-term observation.