REI is now selling a new whistle with a claimed rating of 120 d - a gadget called a "tri-power safety whistle," or something similar. Santa brought one to me for Xmas and it indeed is pretty loud.

My apologies - I would post the link if only I knew how...

I don't have the slim whistle. There have been reports on other fora of the plastic insert moving inappropriately. 4Sevens reports that they have found the problem in production and fixed it. They also say that they will fix or replace any that have the issue.

My keychain whistle is the flat $40 model. No problems to report. Would buy again without hesitation.

I have no affiliation with 4Sevens other than owning a ridiculous amount of their products.

There you go REI Tri-Power Safety Whistle

http://www.whistlesforlife.com/

Tri Power whistle said to contain a pea (stated waterproof).

Is there any reason to not stick with the Fox 40 Micro? It's inexpensive, loud as heck, and proven.

Older ears like mine can't hear the Fox 40 -- not decibels, pitch/frequency. I figure I'm prolly not the only one.

I hear the Sharx just fine.

I didn't realize that the Sharx had such a different pitch.

I have been told, in this forum, to stay away from pea-type whistles.

Jeanette Isabelle

I wonder if the pealess chambers still work if the pea freezes?

Most new better quality pea type whistles now use a non absorbent pea material that does not collect moisture and cause, IMO, the almost mythical freezing that would prevent the pea whistle from working.

I grew up playing organized league hockey and also unorganized outdoor rink/pond hockey outdoors in temperatures down to -20 if not more sometimes. When we did have a "Ref" for the outdoor game the old style pea whistles always worked fine with constant use while exposed to the these cold temperatures.

I have never heard of any old style pea whistle not working when needed in a survival situation. Remember the best survival gear is what you have with you when needed. If all you have is a old pea whistle, it is much better then the alternative of no whistle at all.