The OTT CBS is a compact, accurate, and low power bubbler sensor for surface water level monitoring. The OTT CBS meets or exceeds USGS standards for accuracy, and will not drift over time. It features outputs for SDI-12 and 4…20 mA.
| *Parameters Measured | Water Level |
| Accuracy | ±0.016 ft (±5 mm) |
| Interface | 4 – 20 mA, SDI-12, SDI-12 via RS-485 |
| Level Accuracy | ±0.016 ft (±5 mm) |
| Measuring Range | 0 – 50 ft (0 – 15 m) |
| Number of orifices | 1 |
| Operating Temperature Range | -4 – +140 °F (-20 – +60 °C) |
| Orifice Fitting Size | 2/4 mm; 4/6 mm |
| Power Consumption | Measuring interval 15 min: typ. 25 |
| Power Supply | 10 – 30 V DC, typically 12/24 V DC |
| Protection Class | IP 43 |
| Resolution | 0.01 ft; 0.001 psi (1 mm; 0.1 mbar) |
| Standard storage temperature | -40 – +185 °F (-40 – +85 °C) |
Documents
191217-HY-OT-GS-cs-Harris_County_Flood_Warning_System-EN 
191217-HY-OT-GS-im-Flood_Management_Infographic-EN (1)
OTT CBS Declaration of Conformity
180601-HY-OT-SW-gu-Urban_Hydrology-EN
HY-OT-SW-gu-Surface_Water_Selection_Guide-EN-200716 (1)
200129-HY-OT-GS-wp-CBS_Whitepaper-EN
HY-OH-GS-wp-Urban_Flood_Warning-EN
140610_HY_SU_SW_wp_bubbler-technology-benefits-fast-track-overview_EN
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