Involvement:General (knows how to use it) - Ownership:1 day to 1 week
I bought 3 units and all of the thermometers show a consistent temperature. Same with the hygrometer which reading are consistent. All the rest of the gadgets - LED light, reflector, spirit level, compass, whistle, flint, 3X magnifier and ruler - work too.
There is a little pin that lets you push out the whistle, flint and flint igniter. It's easy to lose the pin as it is loosely attached to the package. So make sense to carry a spare. Also the flint is a little brittle so it may break if you use the pin to push it out too strongly. The ruler is a bit short so not sure how useful it is.
There is a limit to the design in order to fir everything together so overall well designed.
For less than US$6, you can't get a similar device elsewhere, unless you're in China street shopping!
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