Product Description Multifunctional Digital Altimeter Experience a comprehensive outdoor tool that combines multiple functionalities in a compact design: Weather Forecast & Time: Anticipate weather conditions 12 to 24 hours in advance with four distinct states: sunny, partly sunny, cloudy, and rainy. Features a 24-hour time format. Precision Altitude Measurement: Utilizes atmospheric pressure changes to measure altitude differences, providing highly accurate results. Clear LCD Display: Enjoy an easy-to-read display, complete with a 5-second high-brightness blue backlight for visibility in low-light conditions. Digital Compass: Equipped with an 8-azimuth mode display, external magnetic field correction, and accuracy up to ±3 degrees. Easy-to-Use: Designed for outdoor enthusiasts, this device is simple to operate and delivers vital information efficiently. Specifications Material: Durable ABS Altitude Measurement Range: -700 to 9000 meters (-2300 to 2950 feet) Resolution: ±1 meter Barometer Range: 300 to 1100 mbar Barometer Resolution: 0.1 mbar Temperature Range: -10 to 60 ℃ (switchable to ℉) Power Supply: Requires 2 AAA batteries (1.5V) - Not Included Dimensions: 90 x 50 x 20 mm (3.54 x 1.97 x 0.79 inches) Weight: 50 grams (1.76 ounces) Package Weight: 60 grams (2.12 ounces) Package Dimensions: 15 x 8 x 2.2 cm (5.91 x 3.15 x 0.87 inches) Packing List 1 x Digital Altimeter 1 x Lanyard