Features：
Model:XD-TK4
Material:ABS
Historical altitude record:256PSC record
Thermometer:Celsius / Fahrenheit format
Clock:12-hour or 24-hour clock
Power-saving design:start automatic height measurement
Product size: about 9x5x2cm / 3.54×1.97×0.79in
Weight:about 100g
Battery:1 CR2032 button battery (not included)
Package included：
1*Altimeter
