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There are a lot of other similar items to find.
Brand new & high quality
Plastic whistle with nylon neck lanyard
With a small compass on one side and a thermometer on the other
Great for camping, hiking, hunting, boating, etc.
Temperature range: -20 °C - 50 °C
Lanyard length: approx 40cm
Dimension: approx 5cm(L) x 2.5cm(W) x 2.3cm(H)
Comments
There are a lot of other similar items to find.
Brand new & high quality
Plastic whistle with nylon neck lanyard
With a small compass on one side and a thermometer on the other
Great for camping, hiking, hunting, boating, etc.
Temperature range: -20 °C - 50 °C
Lanyard length: approx 40cm
Dimension: approx 5cm(L) x 2.5cm(W) x 2.3cm(H)
http://www.ebest24.com/en/3-in-1-survival-whistle-with-compass-thermometer.html