The SonTek FlowTracker2 handheld Acoustic Doppler Velocimeter (ADV®) is a handheld, portable, and precise wading discharge measurement instrument.
We know our users love and trust the technology with the original FlowTracker, but we wanted more! The FlowTracker2 now comes with functional, modernized features such as Bluetooth, GPS, and a large color screen, to name only a few. The enhancements came directly from the evaluation and feedback from hydrologists, researchers, and scientists who have made the FlowTracker their instrument of choice.
Portable. Precise. Practical.
The real advantage becomes clear from the moment you start to collect data. Each step of the way, FlowTracker2 guides you along the measurement process with visual prompts and SmartQC audio alerts just in case something important needs your attention. FlowTracker2 handheld software is intuitive, easy to navigate, and includes real-time plots of point data, QC parameters, and measurement verticals, giving you everything you need at-a-glance. Get defensible data correctly, the first time, every time, and minimize data handling back at the office.
Whenever and Wherever You Need
With rugged construction for any climate and multiple display options for both day and night, FlowTracker2 goes whenever and wherever you need it to go. This includes:
FlowTracker2 uses SonTek’s tried-and-true ADV technology, vetted for decades by experts across the globe in hydraulics labs and wide-ranging field environments. Improved and perfected for FlowTracker2, the acoustic-based ADV sensor offers unparalleled accuracy, particularly in low flow and any wading device's shallowest water. 2-D data in the horizontal plane (2D/3D option available) allows the most comprehensive QC and understanding of flow conditions. User calibration is never required, and 24/7 tech support from SonTek and our worldwide team is only a call away.
At its core, FlowTracker2 uses SonTek’s tried-and-true ADV technology, vetted for decades by experts across the globe, in hydraulics labs, and wide-ranging field environments. Improved and perfected for FlowTracker2, the acoustic-based ADV sensor offers unparalleled accuracy, particularly in low flow and any wading device's shallowest water. 2-D data in the horizontal plane (2D/3D option available) allows the most comprehensive QC and understanding of flow conditions. User calibration is never required, and 24/7 tech support from SonTek and our worldwide team is only a call or click away.
Some of the major improvements featured in FlowTracker2 come straight from field users like you. Here is a shortlist of time-saving, fool-proof features:
There is a lot to get excited about when using the new FlowTracker2 handheld. Intuitive workflow and rich graphics make for a modernized, interactive experience. Now you can:
Probe Specifications
Velocity Range | XZ: ±0.001 to 4.0 m/s (0.003 to 13 ft/s), Y: ±0.001 to 1.0 m/s (0.003 to 3.25 ft/s) |
Velocity Resolution | 0.0001 m/s (0.0003 ft/s) |
X&Y Velocity Accuracy | ±1% of measured velocity, ±0.25 cm/s |
Z Velocity Accuracy | ±3% of measured velocity |
Acoustic Frequency | 10.0 MHz |
Sampling Volume Location | 10 cm (3.93 in) from the centre transducer |
Sampling Volume Size | 0.25 cc |
Minimum Depth | 0.02 m (0.79 in) |
Depth Measurement Range | 0 to 10 m (0 to 32.81 ft) |
Depth Measurement Resolution | 0.001 m (0.003 ft) |
Temperature Sensor | Resolution: ±0.01° C, Accuracy: ±0.1° C |
Tilt Sensor | Resolution: (7) significant digits, Accuracy: ±1.00° |
Comms Protocol | RS-232 |
Operating/Storage Temperature | –20° C to 50° C (–4° F to 122° F) |
Optional Extension Cables | 1.5, 3.5, or 8.5 m |
Sampling Rate | 1*, 2, 5*, or 10* Hz |
Probe Dimensions | 2D: (L)13.3 cm (5.22 in); (W) 6.1 cm (2.39 in); (H) 2.3 cm (0.90 in), 2D/3D: (L)13.3 cm (5.22 in); (W) 6.1 cm (2.39 in); (H) 7.5 cm (2.96 in) |
Standard cable length | 1.5 m (4.92 ft) |
Weight (in air) | 2D: 0.90 kg (1.98 lbs) |
Weight (in water) | 2D: 0.30 kg (0.66 lbs) |
Depth Sensor Accuracy | +/– 0.1% of FS (temperature compensated over full operating range)
+/– 0.05% Static (steady-state at 25° C) Additionally compensated for real-time water velocity, temperature, salinity, and altitude. |
Handheld Specifications
Bluetooth | Class 2, Range = 10 m (33 ft) nominal |
USB | Micro USB, IP-67 |
Storage Temperature | –30° to 70° C (–22° F to 158° F) |
Waterproof Rating | Field: IP—67 (1m submersible); Lab: IP—68 (30 m, 42 PSI) |
Handheld Dimensions | (L)10.4 cm (4.1 in); (W) 6.4 cm (2.5 in); (H) 23.7cm (9.3 in) |
Weight in Air | 0.75 kg (1.65 lbs) |
Weight in Water | 0.25 kg (–0.55 lbs |
Input Battery Voltage | 8—12 VDC |
Battery Life | 12 hours continuous use, typical settings1 |
Power Supply | Field: 8x AA Batteries; Lab: 8—12 VDC |
Power Consumption | 1 W (Average) |
Battery Power to Probe | 8—12 VDC |
Data Transfer | RS—232 |
Data Storage | 16 GB. Up to 10k discharge measurements. Up to 10 million velocity samples |
H. Position Accuracy | Up to 2.5 m (8.2 ft) nominal2 |
Frequency | L1 (1.575 MHz), SBAS compensation (WAAS, EGNOS, MSAS, GAGAN) |
Resolution | 320 x 240 TFT Transmissive |
Operating Temperature | Alkaline Batteries: –20° to 45° C (–4° F to 113° F) NiMH: –20° to 50° C (–4° F to 122° F) |