Current price matches the higher end of average price for this product.
These’s 68% probability of this price will decrease.
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Lowest
$21.10
a year ago
Average
$24.19
Now $3.81 more
Highest
$30.99
6 months ago
Price History
Whistle had Adjustable Frequency
Protective end cap
Quiet human audible sound to confirm whistle is working
However the whistle is engineered to produce a relatively quiet whistle sound audible in the human range the sole purpose of this is to reassure the user that a sound in the required range is being produced
The reason for this is that if the whistle is incorrectly set up when selecting the frequency then it will not function properly without this facility the user will not realise the whistle is not working