Involvement:General (knows how to use it) - Ownership:1 week to 1 month
- Thermometer is quite accurate; with a scale division of 2°C or 5°F - Compass is liquid based and is quite accurate, but it contains a small air bubble - Quite light
- Magnifying lens is made of plastic; with a diameter of around 1.3cm. It is not well made and don't expect to start a fire with it
- Whistle is quite soft
- Covered with some yellow dust when received
- Thermometer is glued and slightly slanted to the left, but can be easily fixed by removing the transparent cover and position it correctly
- A bit thicker than I expected
To get another type of keychain, go for sku 4338 for 42 cents more. But this doesn't have the logo and words printed on it unlike sku 4338
This is not suitable to be used as a survival whistle due to the shortcomings, but it is still useful as the compass and thermometer are quite accurate. Bring it along in your next trip to know the temperature and your direction.
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