Standard Loggers: Measure more, download faster.
Our standard loggers can measure up to 10 parameters. Numerous configuration options allow for maximum customization for your measurement needs. In addition to our conductivity, temperature and depth sensors, many others, including third-party sensors, can be used with our recorders.
Measure one or two parameters.
RBRvirtuoso³ & RBRduo³ | Single and Dual Channel Loggers

Features
- 240M readings
- Up to 32Hz sampling
- USB-C download
- External serial options: RS-232 or RS-485
- Intermittent and continuous burst ability
Available Sensors:
Conductivity, Temperature, Depth, CO2, Dissolved Oxygen, Fluorescence, ORP, PAR, pH, Turbidity, Transmittance, and Voltage
Popular Models
Measure salinity.
RBRduo³, RBRbrevio³ & RBRconcerto³ | C.T, C.T.D, & More

Features
- 240M readings
- Up to 32Hz sampling
- USB-C download
- Twist activation
- Wi-Fi ready
Available sensors:
Conductivity, Temperature, Depth, CO2, Dissolved Oxygen, Fluorescence, ORP, PAR, pH, Turbidity, Transmittance, and Voltage
*The RBRbrevio³ is strictly a C.T.D
Popular Models
Measure 3 to 10 parameters.
RBRmaestro³ | Multi-Channel Logger

Features
- Up to 240M readings
- Up to 16Hz sampling
- USB-C download
- Twist activation
- Wi-Fi ready
- Supports 3 to 10 channel combinations
- Realtime communication with USB, RS-232, or RS-485
Available sensors:
Conductivity, Temperature, Depth, CO2, Dissolved Oxygen, Fluorescence, ORP, PAR, pH, Turbidity, Transmittance, and Voltage
Popular Models
High Accuracy Measurements.
RBRquartz³ BPR & RBRquartz³ Q

Features
- Up to 240M readings
- Up to 16Hz sampling
- USB-C download
- Twist activation
- High accuracy
- Realtime communication with USB, RS-232, or RS-485
Popular Models
Measure tide and waves.
RBRvirtuoso³ , RBRduo³ & RBRquartz³| Tide & Wave Loggers

Features
- 120M measurements
- Up to 16Hz sampling
- USB-C download
- Flexible tide averaging
- Low frequency wave detection
- Intermittent and continuous burst ability
Popular Models
Measure temperature.
RBRconcerto³ Tx | Thermistor Strings

Features
- 240M readings
- USB-C download
- Up to 24 thermistors
- Up to 400m in length
Popular Models
Third party sensors
Sensor | Manufacturer | Max. depth (m) | Calibrated Range | Accuracy |
---|---|---|---|---|
Dissolved Oxygen | Oxyguard | 2,000 | 0 to 200% | ±2% |
Dissolved Oxygen | Aanderaa Optode | 6,000 | 0 to 120% | ±5% |
Dissolved Oxygen |fast | JFE Alec | 6,000 | 0 to 200% | ±2% |
Fluorometer | Turner Designs (auto-ranging) | 600 | 0.025-500 μg/l Chlorophyll a | ±2% |
Fluorometer | Seapoint (auto-ranging) | 6,000 | 0.025 – 150 μg/L | ±2% |
ORP (RedOx) | Idronaut | 1,500 / 6,000 | -1 to +1 V | ±0.01 |
PAR | Licor | 560 | 0 to 10,000 μmol/s-m2 | ±2% |
PAR (5 decade) | BioSpherical | 2,000 | 0 to 5,000 μmol/s-m2 | ±2% |
pH | Idronaut | 1,500 / 6,000 | 1 to 13 pH | ±0.1 |
Transmissometer | Wetlabs | 600 / 6,000 | 660, 530, 470, or 370nm | ±0.1% |
Turbidity (OBS, TSS) | Turner Designs (auto-ranging) | 600 | 0.05 to 1500 NTU | ±2% |
Turbidity (OBS, TSS) | Seapoint (auto-ranging) | 6,000 | 0 to 2,500 FTU (NTU) | ±2% up to 1250 FTU |