DEPTHS UP TO 10000m
RBRsolo³ | deep and RBRduet³ | deep: abyssal loggers
Our most compact and highly durable loggers for deepwater applications.
- Depths up to 10000m
- Any AA battery
- Long deployments
- Standard sampling up to 2Hz, and optionally up to 32Hz
- USB-C download
- Cabled RBRcoda³ variants available

Features & Configurations
The RBRsolo³ T | deep, RBRsolo³ D | deep, and RBRduet³ T.D | deep in titanium are small but incredibly strong. Deployable to the bottom of the Marianas Trench, they provide accurate and stable measurements in the most challenging environments. Low power consumption allows for extended schedules on a single battery.
The RBRsolo³ T | deep, RBRsolo³ D | deep, and RBRduet³ T.D | deep are designed to endure harsh conditions. Titanium housing resists all forms of marine corrosion. Specialized circuitry ensures exceptional signal-to-noise ratio.
Large data storage capacity and reliable battery power facilitate long deployments with higher sampling rates. Downloads are quick with USB-C. A dedicated desiccant holder makes it simple to replace desiccant before each deployment.
The calibration coefficients are stored with the instrument, and only one software tool, Ruskin, is required to operate it. Datasets can be read directly in Matlab, or exported to Excel, OceanDataView®, or text files.
Optional Configurations
RBRsolo³ T | deep | temperature, up to 2Hz sampling |
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RBRsolo³ T | fast | deep | temperature, up to 32Hz sampling |
RBRsolo³ D | fast | deep | pressure, up to 2Hz sampling |
RBRsolo³ D | deep | pressure, up to 32Hz sampling |
RBRduet³ T.D | deep | temperature and pressure, up to 2Hz sampling |
RBRsolo³ D | fast | deep | temperature and pressure, up to 32Hz sampling |
Specifications
Storage | ~65 million samples (RBRsolo³ D) ~130 million samples (RBRsolo³ T ) ~45 million samples (RBRduet³ T.D ) |
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Power | Any AA cell |
Communication | USB-C |
Clock drift | ±60 seconds/year |
Housing | Titanium |
Diameter | 25.0mm |
Length | ~240mm (RBRsolo³ T) ~225mm (RBRsolo³ T | slow) ~230mm (RBRsolo³ D) ~266mm (RBRduet³ T.D) |
Weight (air) | <400g |
Weight (water) | <70g |
Depth rating | 10000m |
Sampling rates | Up to 32Hz |
Calibrated range | -5°C to 35°C |
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Initial accuracy | ±0.002°C |
Resolution | <0.00005°C |
Typical stability | ±0.002°C/year |
Time constant | <0.1s (| fast) <1s (standard) <15s (| slow, embedded thermistor) |
Range | 1000 / 2000 / 4000 / 6000 / 10000m |
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Initial accuracy | ±0.05 full scale |
Resolution | <0.001% full scale |
Typical stability | ±0.05% full scale per year |
Time constant | <10ms |
