10 in 1 (Thermometer, Hygrometer, LED light, Reflector, Spirit level, Compass, Whistle, Flint, Magnifier, Ruler) Multi-Function Portable Compass

1) Thermometer: Measure of ambient temperature. 2) Hygrometer: Measure for ambient relative humidity 3) LED light: Lighting(Replaceable battery--step to battery a)take out the magnifler and ruler.b)loosen three screws.c)change battery 4) Reflector: Call for help in countryside,reflect sunlight to sent out the light signal. 5) Spirit level: Determine level condition 6) Compass: Measure for magnetic azimuth(relative functions of compass:acquire data at horizontal and verticall level) 7) Whistle: Call for help in countryside,sent out the sound signal.(use tappet to push out the whistle from the third hole the left side) 8) Flint: Wilderness Survival by make fire.(use tapple to push out the flint from the second hole at the left side) 9) Magnifier: Find a coordinate on a map 10) Ruler: Measure a distance * Description: 1) Material: ABS 2) Dimensions: 75mm x 40mm x 25mm 3) Weight: 70g 4) Color: Army green, orange(If you do not choose the color, we will randomly send)