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FLOWATCH Specifications
| Specification | Water Impeller | Standard Air/Gas Impeller |
|---|---|---|
| Impeller Diameter | 60 mm | 20 mm |
| Measurement Range | 0.1–10 m/s | 1–30 m/s |
| Minimum Sensitivity | <0.3 km/h; <0.1 m/s | <3 km/h; <1 m/s |
| Accuracy | ±2% FS | ±2% FS |
| Off-Axis Performance | ±20° / ±3% FS | ±30° / ±3% FS |
| Velocity Units | km/h, m/s, cm/s, mph, fps, knots and Beaufort | |
| Resolution | 0.1 for all units; 3 cm/s when displaying cm/s | |
| Measurement Modes | Instantaneous, maximum and average velocity | |
| Temperature Measurements | Ambient, perceived, minimum, average and maximum temperature | |
| Temperature Units | °C, °F, perceived °C and perceived °F | |
| Temperature Accuracy | ±0.2°C | |
| Temperature Resolution | 0.1°C | |
| Operating Temperature | −50°C to 100°C | |
| Standard Probe | Telescoping aluminum probe with 1.2 m cable and temperature sensor | |
| Optional Remote Sensor | Weighted water-current sensor with 15 m cable | |
FS = full scale. Specifications vary according to the installed impeller.
Optional Flowwatch Measuring Rod
Flowatch measuring rod with continuous inductive connection to the propeller. Does not include Flowatch display nor weighted base which are sold separately.
- Designed for flow profiling at various depths.
Optional Flowatch Additional Weight
Optional Additional weight of 500g for hanging sensor for river or streamflow measurement
Optional Flowatch Hanging Sensor and Cable
Flowatch hanging sensor with 15 m cable, ideal when taking flow measurements from a bridge into a river.
Optional Flowath Weigth For Measuring Rod
Flowatch stainless steel support weight for measuring rod. Does not include measuring rod with propeller which are sold separately.
- 3.6 kg
- 250 mm diameter
- 10 mm thickness
- dismountable from rod for transport
FLOWATCH Applications
Portable velocity measurements for water-current studies, open channels, wastewater systems, and air-movement testing.
River & Streamflow
Measure water velocity during stream surveys, discharge studies, and routine surface-water assessments.
Irrigation Channels
Check velocity in canals, ditches, and other open channels used for irrigation and water distribution.
Tidal & Marine Currents
Evaluate directional water movement near shorelines, estuaries, docks, and tidal waterways.
Wastewater Drainage
Perform spot velocity measurements in accessible wastewater channels, drainage systems, and outfalls.
Ventilation Ducts
Measure air velocity in ventilation openings and ductwork for field checks and system assessments.
HVAC Airflow Testing
Verify air movement around air-conditioning equipment, vents, and building mechanical systems.
