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| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | S5/M9 |
| Pricing | Available Upon Request |
| Operating Temperature | -5°C to 45°C |
| Storage Temperature | -10°C to 70°C |
| Power Supply | 12–18 V DC, rechargeable battery (8 h runtime |
| Memory | 8 GB non-volatile internal storage |
| Max Output Rate | 2 Hz |
| Internal Sampling Rate | up to 70 Hz |
| Velocity Range | ±20 m/s |
| Velocity Accuracy | ±0.25% of measured value |
| Minimum Measurement Distance | 0.06 m |
| Max Depth Range | 80 m (M9) |
| Depth Resolution | 0.01 m |
| Temperature Sensor Resolution | 0.01°C |
| Temperature Accuracy | ±0.1°C |
| Compass/Tilt Range | 360° heading, ±2° heading accuracy, ±1° roll/pitch accuracy |
| RTK GPS Accuracy | 0.03 m horizontal |
| VTG/GGA GPS Accuracy | sub-meter |
| Bluetooth Range | 60 m (mobile), 200 m (laptop) |
| Spread-Spectrum Radio Range | 2000 m |
| Transducer Configurations | Multi-frequency, auto-adaptive cell size, frequency, and sampling mode |
| Brand | YSI |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | FlowTracker2 |
| Price Range | USD 13,500–40,500 (est.) |
| Technology | Acoustic Doppler Velocimetry (ADV) |
| Velocity Range | 0.001–4.0 m/s |
| Resolution | 0.0001 m/s |
| Accuracy | ±1% of measured velocity or ±0.0025 m/s (whichever is greater) |
| Minimum Measurement Depth | 0.02 m |
| Operating Temperature (Probe) | –20 °C to 50 °C |
| Operating Temperature (Display Unit) | –20 °C to 60 °C |
| Storage Temperature | –30 °C to 70 °C |
| Power Supply | 8 × AA batteries (alkaline/NiMH/NiCd), 8–12 V DC |
| Weight | 1.55 kg |
| Display IP Rating | IP67 (1 m submersion for 30 min) |
| Integrated Sensors | Tilt & orientation sensor, GPS receiver, Bluetooth 4.2 LE |
| Display | Color TFT touchscreen, graphical UI |
| Probe–Handle Interchangeability | Yes |
| Data Output | CSV, Excel-compatible, time-series and profile plots |
| Compliance | ISO 748, ISO 10721, USGS TWRI 3-A17, ASTM D5389 |
| Brand | SonTek |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Pricing | Available Upon Request |
| Measurement Principle | Acoustic Doppler Velocimetry (ADV) |
| Form Factor | Handheld |
| Display | Backlit LCD |
| Memory | 4 MB (up to 64 flow files, 160,000 velocity readings) |
| Probe | 2D point measurement probe with 2 m flexible cable |
| Minimum Measurable Depth | 2 cm |
| Minimum Measurable Velocity | 0.001 m/s |
| Maximum Measurable Velocity | 4.5 m/s |
| Velocity Resolution | 0.1 cm/s |
| Velocity Accuracy | ±1% of measured value |
| Temperature Sensor | Integrated, resolution ±0.1 °C |
| Operating Temperature | −20 °C to +50 °C |
| Storage Temperature | −20 °C to +50 °C |
| Power Supply | 8 × AA batteries (alkaline, NiMH, or NiCd) |
| Battery Life | Up to 25 hours (alkaline) |
| Weight | 1.8 kg |
| Probe Width | 13 cm |
| Water Resistance | IP68 (submersible to 1 m) |
| Communication | RS-232 |
| Remote Sampling Location | 10 cm upstream of transducer |
| Flow Calculation Engine | USGS/ISO-compliant real-time discharge computation |
| Calibration | Factory-calibrated in controlled flume environments per ISO 748 and ASTM D3858 standards |
| Software | FlowTracker PC software for data download, QA/QC, report generation, and compliance documentation |
| Origin | USA |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Imported |
| Model | ADP |
| Pricing | Upon Request |
| Velocity Range | ±10 m/s |
| Velocity Resolution | 0.1 cm/s |
| Velocity Accuracy | ±1% of measured velocity or ±0.5 cm/s (whichever is greater) |
| Maximum Ensembles | 100 cells per profile |
| Operating Frequencies | 250 kHz, 500 kHz, 1000 kHz, 1500 kHz, 3000 kHz |
| Max Profiling Range | 3–180 m (frequency-dependent) |
| Power Supply | 12–24 V DC |
| Continuous Power Consumption | 2.0–2.5 W |
| Sleep Mode Power | <1 mW |
| Internal Memory Options | 128 MB / 512 MB / 1024 MB |
| Compass & Tilt Sensor Resolution | 0.1° (heading, pitch, roll) |
| Compass Accuracy | ±2° (heading), ±1° (pitch/roll) |
| Pressure Sensor Options | Strain-gauge (±0.1% FS) or Resonant quartz (±0.01% FS) |
| Transducer Configurations | 3-beam vertical, 2-beam side-looking, 4-beam Janus, 4-beam with vertical beam |
| Software Suite | RiverSurveyor, CurrentSurveyor, CurrentMonitor, ViewADP, SonWave |
| External Sensor Interfaces | CTD (Sea-Bird MicroCAT), Turbidity (D&A OBS), Pressure (Paroscientific quartz) |
| Origin | USA |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Imported |
| Model | Argonaut-XR |
| Price | Upon Request |
| Brand | SonTek |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Pricing | Upon Request |
| Frequency Options | 3000 kHz, 1500 kHz, 1000 kHz, 500 kHz |
| Max Depth Range | 6 m (3000 kHz), 25 m (1500 kHz), 40 m (1000 kHz), 100 m (500 kHz) |
| Min Depth Range | 0.3 m (3000 kHz), 0.5 m (1500 kHz), 1.3 m (1000 kHz), 2.0 m (500 kHz) |
| ADP Diameter | 10 cm |
| Communication | Bidirectional Radio Modem |
| Navigation & Orientation | Integrated Compass and Tilt Sensors |
| Positioning Interface | DGPS-ready (optional integrated DGPS) |
| Software Platform | RiverSurveyor v5.x (including Real-Time Flow Processing, QA/QC Flagging, and Export to CSV/Excel/HEC-RAS) |
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