The Prawler (PRofiling crAWLER) is a low-cost, wave-actuated vehicle that moves along the mooring wire, collecting data from the surface to 500m of the water column. Data can include conductivity, temperature, depth (CTD), optical backscatter, and dissolved oxygen.
Wave motion and special ratcheting clamps move the vehicle up the wire. The Prawler free-falls to the bottom of the user programmed profiling range, collecting data measurements. Wave oscillation powers vehicle movement. Sensors are powered by primary lithium batteries.
Overview
| PROFILING: | Wave actuated |
| POWER: | Sensors powered by primary lithium batteries |
| DEPTH: | Can be deployed in water up to 6000 m (data collection at 0 m – 500 m) |
| OPERATING TEMPERATURE: | -2° C-35° C |
| PROFILING SPEED: | Fall rate ~ 30 cm/sec |
| DATA STORAGE: | Data offload via inductive communications |
| SUPPORTED SENSORS: | Sea-Bird Scientific Prawler CTD (based on SBE-37 Microcat) | Aanderaa Optode DOX |
| Wet Labs/Sea-Bird Scientific Optical backscatter |
For further information download the Prawler Datasheet or Contact us.
Note: McLane utilizes various metals and engineering plastics in the fabrication of our instruments. These materials are usually suitable for long-term oceanographic deployments. However, it is the customer’s responsibility to determine material suitability for a specific operating environment. Review McLane statement on materials used in frames, fixtures, and housings.
Prawler Active Data
See active Prawler field data: temperature and salinity data from Shilsole Bay, Puget Sound, Seattle, WA.
Other Deployment Data
Access Prawler data from the SPURS program.
Support
Visit our Library for a complete selection of Prawler documentation and other product resources.
McLane offers a hands-on course in Prawler operation. Prawler owners and prospective owners are invited to spend one to two days at our facility.
Learn more about Support and hands-on product training.