10 functions in a compact tool: Flashlight, compass, thermometer, whistle, mirror, magnifying glass, and more. It is a good tools for outdoor sports like hiking, camping, biking and spelunking. Tiny and portable, very useful, with it, you will not need to take too many heavy necessary tools for your outdoor sports.
1.Thermometer: measure for ambient temperature. (-20-60Degree)
2.Hygrometer: measure for ambient relative humidity.
3.LED light: it is convenient for you to use at night. Replace battery: (1)take out the magnifier and ruler (2)loosen three screws (3)change battery
4.Reflector: call for help in the countryside, reflect sunlight to sent out the light singnal.
5.Spirit Level: determine level condition
6.Compass: measure for magnetic azimuth (relative function of compass acquire data at horizontal and vertical level.)
7.Whistle: call for help in countryside, sent out the sound signal, (use tappet to push out whistle from the third hole at the left side)
8.Flint fire starter: survival by make fire (use tappet to push out flint form the second hole at the side)
9.Magnifier: find a coordinate on a map.
10.Ruler: measure distance.
Size: About 7.0 x 4.0 x 2.3cm
Color: As picture show