China 4-In-1 Outdoor Multifunctional Survival Whistle + Compass + Magnifying + Thermometer for Camping with Key Ring

This is a multifunctional survival tool, it has 4 functions such as whistle, magnifier, compass thermometer. With a key chain, it is more convenient to bring with. You can use it when camping.
Specifications:
Features:
- It can use as a whistle, a magnifier, a compass or a thermometer.
- As a compass, it can give you the right direction.
- As a magnifier, you can use it to see small things.
- As a whistle, you can use it to let rescue people know your position.
- It can also used as a thermometer, it can measure temperature at - 30 to 50 Centigrade or - 20 to 120 Fahrenheit.
- With a key chain, it is more convenient to bring with.
- It is waterproof and shockproof.
- It is suitable for camping.
Material: ABS plastic
Color: Military green
Dial Display: Pointer
Carrying Mode: Hanging Ring Type
Use: Level
Temperature Measure Range: - 30 ~ 50 Centigrade / - 20 ~ 120 Fahrenheit
Outdoor Activity: Camping
Package Dimensions(L x W x H): 85 x 32 x 22mm
Package Weight: 20g