sand shark

[Craig]

Hi i have a problem trying to work out what detector would be best to use underwater while scuba diving what my problem is hearing the targets over the bubbles,the bubbles from my regulater that is , I already have an Infinium i find that hard to hear,i am thinking a sand shark does anybody know if that would suit also mybe the vibra tector 730 that vibrates and flashes a light when a target is found or does anybody know of other detector that would suite need some opinions THANKS

[groundfisher]

I have never been diving but my excalibur can go pretty loud and is rated to 200' (66m) depth.