Im hs swim coach in indoor pool. its me against 40 kids! need loud authoritative whistle, love acme thunderer but is this the right model for my use?

Most swim coaches use the 59.5 but the 63 is louder.

What do the numbers mean 58.5 59.5 60 etc.?

Actually, the Acme website calls the 58.5 the "large" Thunderer, the 59.5 "medium", and the 60.5 "small". Also, the image is supposed to depict the Thunderer 58.5, but it appears to be the 58, so I'm not sure which one they would send to you.

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Acme Thunderer Whistle - 58

Product ID: 275504559

Details

Colour
Brass
Brand
ACME
Instrument key
A
Material
Metal
Style
58

⚡Instant Response

💧Waterproof Speed Pea

🛡️Nickel Plated Durability

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Description

⚡ Blow the whistle on ordinary – own the sound of authority!

TRUSTED LEGACY - Iconic ACME Thunderer, the whistle of choice for pros since the 1890s.
BLOW EASY REACT FAST - Effortless airflow design ensures instant whistle response when it counts.
ERGONOMIC FINGER GRIP - Secure hold for confident use during high-pressure moments.
TIMELESS CRAFTSMANSHIP - Nickel-plated brass body combines vintage style with modern resilience.
PRECISION SOUND EVERY TIME - Engineered with a waterproof speed pea for flawless, weatherproof performance.

The Acme Thunderer Whistle - 58 is a premium nickel-plated brass whistle featuring a waterproof speed pea for reliable, instant sound. Designed with an ergonomic finger grip and crafted with over a century of expertise, it remains the top choice for coaches, referees, and professionals demanding precision and durability.

Specifications

ASIN	B0002F7AGU
Best Sellers Rank	#14,136 in Sporting Goods ( See Top 100 in Sporting Goods ) #44 in Coach & Referee Whistles
Color Name	Brass
Customer Reviews	4.7 4.7 out of 5 stars (468)
Date First Available	3 September 2012
Instrument Key	A
Item Weight	9.07 g
Item model number	58
Material Type	Brass
Product Dimensions	5.72 x 1.27 x 1.27 cm; 9.07 g

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Customer service was outstanding when I had questions about the product.

2 days ago

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S$50

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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