The NRU OB4 is a 4-component seismic recorder with 3 Internal 14 Hz Omni-Directional orthogonal geophones and one internal hydrophone, to record full wavefield 3C seismic data and pressure waves under water. The OB4C has 138-amp hours of internal battery, GNSS, low energy RF comms, 64GB standard, expandable data storage, SEG standard Seg D, and Seg Y data formats. The unit is rated to 200 meters depth, is continuous or “epoch programable” autonomous nodal recording unit.
 

Weight: 15.2kg
Dimensions: 48.8 x 29.2 cm
Thickness: 9.9cm
Battery Duration: 125 days @ 24 Hours