8 in 1 Portable Outdoor Fishing Camping Handheld Compass Meter Thermometer Barometer Sensor Temperature Test Specifications: The equipment is an ideal and simple equipment for outdoor sports enthusiasts. It provides extensive and accurate information for outdoor sports enthusiasts, with backlight, easy to read. Functions: Altimeter, Barometer, Level Meter, Weather Forecast, Compass, Thermometer, Calendar, Time, Backlight. Scope of application: hiking, camping, mountaineering and other outdoor places. Item Name: Altimeter Material: ABS Battery: 2 * AAA Batteries (Not Included) Features: Multi-function, Backlight, Accurate Size: 9cm x 5cm x 2cm/3.54" x 1.97" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included: 1 x Altimeter 1 x Lanyard 1 x User Manual