The ClearSat-1™ series drifter follows currents in the top meter of the sea's surface layer.
[Brochure]     [Manual]

ClearSat-15™ drifters follow the surface layer lying at depths from 10 to 50 meters. This series complies with the specifications of the WOCE/SVP surface-layer drifter. Clearwater Instrumentation offers the ClearSat-15™ in confugurations including Argos or Argos and GPS equipment.
Argos/GPS [Brochure]     [Manual]
Argos-only [Brochure]     [Manual]

ClearSat Marker buoys tag your equipment at the ocean surface and assist you in relocating equipment anywhere in the world. The ClearSat™ Marker Buoy also comes in Argos™-only and Argos™/GPS versions.
Argos/GPS[Brochure]     [Manual]
Argos-only [Brochure]     [Manual]

The ClearSat-1™ and -15™ drifters can be fitted with a variety of sensors for more demanding oceanographic and meteorological applications. Clearwater routinely offers sensor packages to measure sea surface temperature, sea surface conductivity, barometric pressure, and incident and upwelling light.

All of our instruments can include a 12-channel GPS receiver to provide accurate, on-demand locations. Using the latest GPS technology means that time to first fix is usually less than three minutes worldwide, subsequent fixes are obtained in 30 seconds, location accuracy is the best available, and that satellite occultation is minimal. The built-in NMEA one-second commercial messages can be made available to carry information from other sensors on the drifters.