Tekpointer??

After a whole year of researching, the Teknetics pinpointer seems ideal. First of all I can shut off the light. Secondly , I can use vibrate only. Finally, it has 360° sensitivity. I plan to use it for shallow water snorkeling this summer. Has anyone compared it to the Quest underwater pinpointer-a close second? Forgot to add- the new tekpointer is waterproof in shallows.