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| Brand | Sequoia |
|---|---|
| Origin | USA |
| Model | HYPER-bb |
| Spectral Range | 430–700 nm |
| Spectral Bandwidth | 9–17 nm |
| Scattering Centroid Angle | ~135° |
| Measurement Volume | ~2 mL |
| Beam Diameter | ~12 mm |
| Scan Time | 6 s (5 nm interval, 50 channels) / 15 s (10 nm interval, 27 channels) |
| Depth Rating | 600 m |
| Operating Voltage | 8–26 VDC |
| Current Draw | 750 mA @ 12 VDC |
| Communication | RS-232, 9600–115200 baud |
| Internal Storage | 1 GB |
| Temperature Range | –5 to 45 °C |
| Temp Resolution | 0.001 °C |
| Temp Accuracy | ±1 °C |
| Depth Range (seawater) | 0–600 m |
| Depth Resolution | 1 cm |
| Depth Accuracy | ±1% FS |
| Dimensions (Φ × L) | 13.4 × 51.9 cm (incl. handle) |
| Weight (air/water) | 6.0 kg / 1.2 kg |
| Optional Accessories | Calibration Tank with Stepper Motor, Profiling Frame, Lens Brush, Flow-Through Cell, Alkaline Battery Pack (12 h continuous operation) |
| Brand | WET Labs |
|---|---|
| Origin | USA |
| Model | C-Star |
| Wavelength Options | 370 nm, 470 nm, 532 nm, or 650 nm |
| Path Length | 10 cm or 25 cm |
| Receiver Acceptance Angle | 1° |
| Spectral Bandwidth | 10–12 nm (370 nm), 20 nm (470/532/650 nm) |
| Accuracy | ±0.003 m⁻¹ @ 1 Hz |
| Operating Temperature | −2 to 40 °C |
| Pressure Rating | 600 m (plastic housing), 6000 m (aluminum housing) |
| Dimensions (25 cm path) | 47 × 6.4 × 9.3 cm |
| Dimensions (10 cm path) | 29.2 × 6.4 × 9.3 cm |
| Dry Weight | 2.2 kg (plastic), 3.6 kg (aluminum) |
| In-Water Weight | 0.9 kg (plastic), 2.7 kg (aluminum) |
| Input Voltage | 7.5–15 VDC |
| Sampling Rate | 8 Hz |
| Output Interface | RS-232 |
| Brand | TriOS |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | RPMS |
| Pricing | Upon Request |
| Maximum Operating Depth | 300 m |
| Descent Speed Range | 0.1–1.0 m/s |
| Power Supply | 8–12 VDC (±3%) |
| Power Consumption | ≤ 0.85 W |
| Housing Material | Stainless Steel (1.4571/1.4404) or Titanium Alloy (3.7035) |
| IP Rating | IP68 |
| Operating Temperature | +2 to +40 °C |
| Storage Temperature | −20 to +80 °C |
| Calibration Interval | 24 months |
| Data Interface | RS-232 (TriOS Protocol) |
| Sensor Options | RAMSES-ACC (UV/VIS Cosine Irradiance), RAMSES-ARC (Radiance), RAMSES-ASC (Spherical Irradiance) |
| Spectral Ranges | ACC-UV (280–500 nm), ACC-VIS / ARC / ASC (320–950 nm) |
| Detector | 256-channel silicon photodiode array |
| Spectral Sampling | 2.2–3.3 nm/pixel |
| Spectral Accuracy | ±0.2–0.3 nm |
| Typical NEI (8 s integration) | 0.25–0.8 µW·m⁻²·nm⁻¹ (irradiance), 0.25–0.8 µW·m⁻²·nm⁻¹·sr⁻¹ (radiance) |
| Cosine Error | <6–10% (wavelength-dependent) |
| Radiance FOV (air) | 7° |
| Spherical Collector Coverage | 2π sr |
| T₁₀₀ Response Time | ≤10 s (pulse mode) |
| Measurement Interval | ≤8 s (pulse mode) |
| Brand | Sequoia |
|---|---|
| Origin | USA |
| Model | LISST-VSF |
| Measurement Parameters | VSF (P11), Degree of Linear Polarization (DoLP, P12), Sphericity (P22), Beam Transmission, Depth, Temperature |
| Angular Range | 0.1°–15° (log-spaced, 32 channels) & 15°–150° (1° resolution) |
| Temperature Range | −5 to 50 °C (0.1 °C resolution) |
| Depth Range | 0–50 m (0.08 m resolution) |
| Beam Attenuation Coefficient | 0.1–20 m⁻¹ |
| Sampling Time per Full VSF + DoLP Set | ~4 s |
| Power Supply | 12–15 VDC, 700 mA operating |
| Data Interface | RS-232 (9600/115200 bps) |
| Internal Storage | 128 GB (≈24,000 full measurements) |
| Dimensions (Φ × L) | 12.7 × 95.7 cm (with handle) |
| Weight (air) | 13.1 kg |
| Max Operating Depth | 50 m |
| Brand | TriOS |
|---|---|
| Origin | Germany |
| Model | RAMSES |
| Measurement Range | UV (280–500 nm) / VIS (320–950 nm) |
| Detector | 256-channel silicon photodiode array |
| Spectral Sampling | 2.2–3.3 nm/pixel |
| Spectral Accuracy | ±0.2–0.3 nm |
| Cosine Response Error | <6–10% |
| Integration Time | 4 ms – 8 s |
| Response Time (Pulse Mode) | ≥16 s |
| Minimum Measurement Interval (Pulse Mode) | ≥8 s |
| Housing Material | Stainless Steel (1.4571/1.4404) or Titanium (3.7035) |
| Dimensions (L × Ø) | ACC: 260 × 48 mm, ASC: 245 × 48 mm, ARC: 300 × 48 mm |
| Weight | 0.9 kg (stainless), 0.7 kg (titanium) |
| Power Supply | 8–12 VDC (±3%) |
| Power Consumption | ≤0.85 W |
| Operating Temperature | +2 to +40 °C |
| Storage Temperature | −20 to +80 °C |
| Pressure Rating | 30 bar (SubConn) |
| Ingress Protection | IP68 |
| Flow Rate Compatibility | 0.1–10 m/s |
| Digital Interface | RS-232 (TriOS protocol) |
| Calibration Interval | 24 months |
| Maintenance Frequency | ≤0.5 h/month |
| Brand | TriOS |
|---|---|
| Origin | Germany |
| Model | RAMSES-VIS |
| Measurement Types | Radiance & Irradiance (in air and water) |
| Spectral Range | 320–950 nm (VIS/UV) |
| Detector | 256-channel silicon photodiode array |
| Spectral Sampling | 3.3 nm/pixel |
| Spectral Accuracy | ±0.3 nm |
| Effective Channels | 190 |
| Field of View (ARC) | 7° (in air) |
| Cosine Response (ACC) | Compliant with ISO 17166:2022 / CIE S 023 |
| Scalar Response (ASC) | 2π full-hemispherical |
| Calibration | Traceable to PTB (Physikalisch-Technische Bundesanstalt), dual-medium (air/water) NIST-traceable calibration |
| Power Consumption | <1.5 W |
| Housing | Titanium alloy, pressure-rated to 6000 m depth |
| Coating | Anti-fouling nano-coating (hydrophobic, UV-stable) |
| Brand | TriOS |
|---|---|
| Origin | Germany |
| Model | Viper G2 |
| Wavelength Range | 360–720 nm |
| Light Source | 5 high-efficiency LEDs |
| Detector | 256-channel miniature spectrometer (2.2 nm/pixel) |
| Optical Path Lengths | 10, 50, 100, 150, 250 mm |
| Measurement Principle | Spectral transmittance/attenuation |
| Absorbance Range | 0.01–2.5 AU |
| Accuracy | < 0.2 % |
| Turbidity Compensation | Yes |
| Data Storage | ~2 MB |
| Response Time | 2 min |
| Minimum Measurement Interval | ≥1 min |
| Housing Material | Stainless Steel (1.4571 / 1.4404) or Titanium Alloy (3.7035) |
| Dimensions (L × Ø) | 495 mm × 48 mm (for 50 mm path length) |
| Weight | ~2.4 kg (stainless), ~1.3 kg (titanium) |
| Digital Interfaces | Ethernet (TCP/IP), RS-232 / RS-485 (Modbus RTU) |
| Power Supply | 12–24 VDC (±10 %) |
| Power Consumption | ≤3 W |
| Calibration Interval | 24 months |
| Max. Pressure Rating | SubConn: 30 bar |
| Fixed Cable | 3 bar |
| Flow Cell | 1 bar (2–4 LPM) |
| IP Rating | IP68 |
| Operating Temperature | +2 to +40 °C |
| Storage Temperature | −20 to +80 °C |
| Flow Velocity Range | 0.1–10 m/s |
| Compliant Standards | DIN EN ISO 7887-3:2011, DIN EN ISO 6271:2005, GOST 3351-74 |
| Brand | TriOS |
|---|---|
| Origin | Germany |
| Model | AWRAMS |
| Sensor Type | Hyperspectral Radiometric System |
| Spectral Range | 280–950 nm |
| Detector | 256-channel silicon photodiode array |
| Spectral Sampling | 2.2–3.3 nm/pixel |
| Spectral Accuracy | ±0.2–0.3 nm |
| Field of View (LW) | 7° (air) |
| Cosine Response Accuracy | <10% deviation |
| IP Rating | IP67 |
| Operating Temperature | −10 °C to +50 °C |
| Power Supply | 24 VDC (18–30 V range) |
| Communication | RS-232 (TriOS protocol), 4G LTE |
| Data Storage | Onboard SD card + cloud upload |
| Positioning | GPS/BeiDou (±2 m accuracy, <0.5 s time sync) |
| Enclosure Material | 316L stainless steel |
| Weight | ~0.9 kg (stainless), ~0.7 kg (titanium) |
| Calibration Interval | 24 months |
| Brand | Macam |
|---|---|
| Origin | United Kingdom |
| Model | SR9910 |
| Optical Input Channels | 2 |
| Spectral Range | 240–800 nm |
| Detector Type | UV-enhanced CCD array |
| Calibration Traceability | NPL-traceable irradiance calibration |
| Sensor Compatibility | Spherical and planar irradiance sensors |
| UV Measurement Capability | Simultaneous UVA (315–400 nm) and UVB (280–315 nm) irradiance |
| Typical Applications | In-water radiometric profiling, aquatic photobiology, optical oceanography, satellite validation, water quality parameter inversion |
| Brand | HOBI Labs |
|---|---|
| Origin | USA |
| Model | HydroScat-6P |
| Optical Geometry | 140° backscatter angle |
| Wavelengths | 6 standard (420, 442, 470, 510, 590, 700 nm) + optional extended bands |
| Fluorescence Channels | 700 nm (excited at 442 nm), 510 nm (excited at 420 nm) |
| Spectral Bandwidth | 10 nm (20 nm @ 676 nm |
| Depth Rating | 330 m standard, 550 m optional |
| bb Noise | 2×10⁻⁵–2×10⁻⁴ m⁻¹ RMS |
| bb Offset Uncertainty | 5×10⁻⁵–5×10⁻⁴ m⁻¹ RMS |
| Dimensions | 20.3 cm Ø × 34.5 cm L |
| Weight | 8.4 kg (air), 5.0 kg (water) |
| Power | Rechargeable 12 V battery (10–15 V input), max 3 W |
| Battery Life | ≥20 h continuous, extended in pulsed mode |
| Data Storage | 256 KB standard (expandable to 128 MB), supports ~7,000 spectra + depth records |
| Sampling Interval | 0.1–30,000 s |
| Interface | SubConn MCBH8M / MCIL8F |
| Operating Temperature | 0–35 °C |
| Calibration | In-lab user-performed via four-step protocol (baseline, dark offset, mu, gain ratio) |
| Compliance | Designed for ASTM D7315, ISO 13122, and NASA SeaBASS-compatible data workflows |
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