Flexible configuration
You can choose 3-5 sensors from more than ten types for combination, including conductivity (C), temperature (T), pressure (D), dissolved oxygen (DO/ODO), turbidity (Tu), PAR, pH, etc., to truly achieve customized measurement.

RBRconcerto ³ is a multi parameter underwater recorder with flexible design and excellent performance. It allows users to freely integrate three to five sensors on a single host, perfectly adapting to various needs from basic hydrological measurement to complex environmental monitoring. This series of products adheres to the core advantages of the RBR product line of "more observation parameters, longer deployment time, and faster download speed", providing up to 240M of storage capacity and several years of battery life, making it an ideal choice for long-term, unmanned observation tasks. Its sturdy titanium alloy shell model (| deep) is capable of withstanding extreme environments deeper than 6000 meters, ensuring reliable and complete data acquisition.

You can choose 3-5 sensors from more than ten types for combination, including conductivity (C), temperature (T), pressure (D), dissolved oxygen (DO/ODO), turbidity (Tu), PAR, pH, etc., to truly achieve customized measurement.
Built in 8 AA batteries, supporting long-term deployment at high sampling rates; 240M of storage space can record massive amounts of data.
Standard USB-C interface for fast data download and transfer; Simultaneously supporting RS-232/485 communication.
Magnetic switch function: Instrument switches can be controlled by magnets without opening the cabin, making operation simple and improving waterproof safety.
Wi Fi communication (optional): Provides wireless connection options for on-site debugging and
We offer two types of shell materials: plastic and titanium alloy. The titanium alloy (| deep) model can withstand a maximum pressure of 6000 meters and is designed specifically for harsh deep-sea environments.
Instrument settings, data downloads, and processing can be completed through Ruskin software, and data can be easily exported to Excel or OceanWebView ® Or in text format.

| Parameter | Specifications |
| Physical parameters | |
| Storage capacity | 240M measurement readings |
| internal power supply | Built in 8 AA batteries (lithium/alkaline) |
| External power supply |
4.5 - 30 V DC |
| Communication interface | USB-C or RS-232/485 |
| Clock accuracy | ± 60 seconds/year |
| Shell material | Plastic or titanium alloy (Ti) |
| Diameter | 63.3 mm (plastic)/60.3 mm (titanium alloy) |
| Maximum withstand voltage | Up to 6000 meters (depending on specific configuration) |
| Sampling rate | 2 Hz; up to 16 Hz optional (configuration related) |
| conductivity | |
| Range |
0 - 85 mS/cm |
| Initial accuracy |
±0.003 mS/cm |
| Resolution |
< 0.001 mS/cm |
| Stability | 0.010 mS/cm/year |
| temperature | |
| Range | -5 ° C to 35 ° C (expandable) |
| Initial accuracy |
±0.002°C |
| Resolution |
< 0.00005°C |
| Stability |
±0.002°C/年 |
| Time constant | <0.1s (fast) or<1s (standard) |
| Depth (pressure) | |
| Optional range (plastic) |
20, 50, 100, 200, 500, 750 dbar |
| Optional range (titanium alloy) |
1000, 2000, 4000, 6000 dbar |
| Initial accuracy | ± 0.05% of full range |
| Resolution | <0.001% of full scale |
| Stability | Approximately ± 0.05%/year of full scale |
| Time constant |
< 10 ms |
| Optional configuration | |
| Communication | Wi Fi communication module |
| interface | External power supply and real-time data output interface |
| sampling rate | |Fast8 or | Fast16 high sampling rate configuration |
| shell | |Deep titanium alloy deep-sea model |