Product Description
The NRU™ is a self-contained seismic nodal recording unit with a 58 gram internal eCab (electronic cab) that can be quickly removed and inserted into a dozen different interchangeable NuSeis formfactors, each optimally suited for particular environments to provide peak operating performance, and the highest quality ground coupling. The unit has a strong and durable two-piece, water proof Lexan externally assembly with locking rings that enclose the internal battery and geophone. All the NuSeis transformer formfactors have the same upper Lexan dome with four stainless steel MIM protrusions for data download and power recharge.
Product Features
- All in one device – geophone, electronics and battery
- Formfactor options for all environments
- GNSS/GPS including GPS, GLONASS, GALILEO, BEIDOU
- Raw GNSS data recording enables DGPS post processing of node location
- High Speed USB data download
- EarthGrip ground coupling providing superior data quality
- Highly visible LED status indicators
- 10 Ah Li-ion battery <100mW power consumption
- Bluetooth 5.1™ continuous broadcast of 20 Health&Status metrics
- High sensitivity geophone (5 Hz, 10 Hz or any other customer choice)
- Optional KCK connector lower end housing – enables external geophone/hydrophone
- System Dynamic Range: 148dB
- 8 GB standard (expandable to 16, 32, or 64 GB)

Specifications
Seismic Data Channel | 1C |
---|---|
ADC Resolution | 24 bit Sigma Delta |
Sample Interval | 0.25ms, 0.5ms, 1ms, 2ms, 4ms |
Preamplifier Gain | Programmable 0dB to 42dB in 6dB steps |
Antialias Filter |
|
Low Cut Filter | None |
Operating Temperature Range | -40C to +75C |
Operational Autonomy |
|
Weight |
|
Dimensions |
|
Battery |
|
Acquisition Channel |
|
Instrument Test | Internal Noise, Total Harmonic Distortion, Impulse Response |
Sensor Test | Resistance, Impedance, Noise |
Sensor |
|
Memory | 8 GB standard (expandable to 16, 32, or 64 GB) |
All specifications subject to change without notice. |