ToltHawk smart sensors give you low cost, small form-factor, easy to deploy, end-to-end solutions for monitoring rivers, streams, lakes, flooding, storm-water, snow, and sewers.

Accurate & Complete Solution

Our sensors measures and transmits level, flow, rain, temperature etc data to the cloud. In the cloud, you have endless ways to Monitor, set Alerts, Model, Share, and Collaborate. Our solutions are self contained, seamless, and easy to deploy, use, and understand.

Easy, Low Cost Monitoring

At ToltHawk, our company's mission is to enable low cost, remote sensors to be deployed easily without special skills, engineering, or specialized tools.

River and Stream Hydrology

Tracks water level and flow in rivers and streams remotely. Data is enriched with weather and nearby rivers data for trend analysis and prediction.


Floods & Flash-Floods

Proactively observes a flash flood prone area. Sends out alerts via SMS texts, emails, and cell phone notifications upon detection.


Monitors snow levels on the ground and the mountains. Sends out alerts via SMS texts, emails, and cell phone notifications upon detection.


Inflow and infiltration (I&I) monitoring of sewer lines using sensors embedded in manholes. Also detects unauthorized tie-ins, sewage blockage, and overflow in sewer lines.

Weirs and Flumes

Provides precise water level measurement for measuring water flow in weirs and flumes. Also provides daily water usage data.

Water Tanks

Precise measurement of water level, water usage, and volume of water tanks. Threshold alerts for overflow/low level conditions. Tracks pump cycles, pump issues, and leakage problems.

Water over Roadway

Uses both non-contact (ultrasonic) and submersible transducers to track water over roadway. Sends out alerts via phone and email.

Public Safety/EMS Map Layer

Detects flooding in a subject area, sends out alerts, and sends data as a geo data layer in EMS/Public Safety dashboards such as ESRI ArcGIS used by public safety personnel.

Flow Data for Water Quality

Government regulatory agencies require water flow or volume information for water quality measurements. ToltHawk's interpolates stage/level into flow.

Tidal/Coastal Flow

Coastal river basins provide a complex hydrology driven by many elements such as tides, wind, river flow, and storm systems. ToltHawk gauges provides a granular hydrologic measurement for monitoring and modeling coastal river basins.

Our Clients

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