FlowTracker Handheld ADV 
Ready for any challenging outdoor condition, the FlowTracker Handheld ADV® (Acoustic Doppler Velocimeter) measures 2D or 3D currents, attaches easily to wading rods, and features an automatic discharge computation using a variety of international methods, including ISO and USGS standards. At the end of the data run, just press a button and the FlowTracker calculates the discharge for you! The FlowTracker is the ideal solution if you are looking for: - A way to avoid recurring calibration/maintenance.
- Tough equipment that rarely breaks down.
- Unmatched performance in shallow water and low flows.
- An easy-to-use interface with just a few steps to follow.
- Built-in quality checks (SmartQC™) - You know the data is right!
Features - Low-profile 2D ADV water velocity sensor on 2-m flexible cable; measures in depths down to 2 cm (1 inch)
- Automatic discharge computation protocols: ISO/USGS mid-section, mean-section, Japanese
- Handheld keypad interface with real-time display
- Velocity methods: ISO, USGS, under ice, Kreps, 5-point, multipoint
- LCD/Keypad languages: English, French, German, Italian, Spanish
- Documentation languages: English, Chinese, French, German, Italian, Japanese, Portuguese, Spanish
- Recorder space: Up to 64 discharge measurements or over 150,000 individual velocity samples
- Data set documentation: Up to 20 values of time-stamped user comments, including gauge height and rated flow
- QA/QC: Automated data review and discharge uncertainty calculations
- FlowTracker software: Windows-based; includes diagnostic beam-check, recorder access, data visualization, customizable reports, and multi-language support.
- Output compatible with FlowPack velocity-indexing software tool
- Temperature sensor
- Hard plastic case
- SmartQC™ - This built-in quality control feature gives added assurance that your data are correct. With each measurement, data are compared to a variety of adaptive QC criteria to ensure the best measurement possible.
- Options:
- 2D/3D sensor probe
- 3-m flexible cable
- Deluxe SonTek 2-piece, top-setting wading rod kit (1.2-m Metric or 4-ft English); includes case, mounting brackets
- Wading rod mounting bracket for controller/keypad
- Offset mounting bracket for ADV probe
Specifications - Velocity range: ±0.001 to 4.0 m/s (0.003 to 13 ft/s)
- Velocity resolution: 0.0001 m/s (0.0003 ft/s)
- Velocity accuracy: ±1% of measured velocity, ±0.25 cm/s
- Sampling volume location: 10 cm from center transducer
- Communication protocol: RS-232
- Power supply: 8 AA batteries (alkaline provides 25+ hours continuous operation)
- Weight: 1.8 kg (4.0 lbs)
- Probe width: 130 mm (5.1 in.)
- LCD/Keypad unit: temporarily submersible to 1 m (3 ft)
- Operating/Storage temperature: -20º to 50ºC
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