system to record dolphins in a pool

[kuisi 0]

Hello

 

I am a studen from University of Spain . For a study, I need to record in a pool with dolphins 24 h continuously with three or four cameras and record in dvr. What material you can suggest . I do not have much budget but not whether to go for an analog system or if there is some IP system . And what cameras i have to use. Max depth 3meters

 

Thanks

[jazzar 0]

quick google for underwater cctv camera- and voila:-

http://www.cameras-cctv.com/waterproof-cameras/Camera-IR-37CSHR-IR-2m-Sony?gclid=CMWIioSA_sUCFQHJtAodem8Afw