CTD Oceanography SRDL with GPS (Argos)

Combines oceanographic quality Conductivity/Temperature/Depth casts with high-precision GPS locations.

Features

Incorporates many of the features of the SMRU SRDL tag plus:

• GPS quality locations at a user-controlled rate
• Oceanographic quality temperature & salinity profiles (2 - 6 profiles per day)
• CTD data automatically submitted to the GTS in near real-time
• Up to 50,000 full length Argos data transmissions
• pressure-proof to 2000m

Valeport CTD sensor head

• Temperature
  • range: -5° to 35°C
  • accuracy: +/- 0.005°C
  • resolution: 0.001°C
• Conductivity
  • range: 0 to 80mS/cm
  • accuracy: +/- 0.01mS/cm
  • resolution: 0.002mS/cm
• Pressure (depth)
  • range: 0 to 2000 dBar
  • accuracy: 2 dBar +/- (0.3 + 0.035%*reading)/°K
  • resolution: 0.05 dBar

TDR capability

Automatically retains a continuous record of sample data, which can be retrieved by bluetooth link if the tag is recovered.

• Depth (4 sec sample rate)
• All GPS fixes at user-defined rate (typically 5 - 20 minutes)
• Individual temperature and salinity measurements (1 Hz) made during upward profiling.

Specification

• Longevity: up to one year
• Size: 10.5 x 7 x 4 cm
• Weight: 545 g
• Volume: ~250 cm³

Typical data

See the MEOP Portal and Buiw et al, 2007 (PDF).

For further information, contact Mike Fedak

---

For details of pricing and how to order, please see our Contact & Sales section.