Product description
Product features:
1. Using Swiss high-precision sensor chip
2. Altitude gain/loss, 24-hour historical altitude data/curve record
3. Historical high/low altitude, air pressure, temperature, humidity records
4.24-hour historical air pressure curve chart
5. Integrate altitude, air pressure, temperature, humidity, weather forecast, compass, flashlight and other functions
6. Time, date, alarm function
7. Built-in rechargeable lithium battery
8.IPX4 waterproof

Specification:
Item Type: Altimeter
Measuring Range: -2296ft to 29500ft (-700m to 9000m)
Resolution: 1m/3ft
Height Measurement: Sea level height/climbing height
Climbing Altitude Recording Function: Support
Altitude Gain/Loss Calculation: Support
Altitude History Record: Record every 30 minutes
Unit: Switch between m/ft
Barometer
Measuring Range: 300hpa to 1100hpa (8.8 to 32.6inHg)
Resolution: 0.1hpa
Unit: Switch between Millibar and Inhg
Thermometer
Display Range: -20 ℃ to 60 ℃ (-4 ℉ to 140 ℉)
Resolution: 1℃/1℉
Unit: Switch between ℃ and ℉
History Temperature Record: Support
Hygrometer
Display Range: 20%-95%
Historical Record: Max/Min humidity
Compass
Display Mode: 360°, 16-orientation display
Resolution: 1°
Weather Forecast
Forecast Range: Next 12 to 24 hours
Four Weather Conditions: Sunny-Sunny to Cloudy-Cloudy-Rainy
Time and Date
Display Mode: 24H or 12H display mode
Flashlight
Flashlight: LED flashlight
Backlight: 5s high intensity LED backlight
Waterproof Level: IPX4
Accessories
L1-12B Lithium Battery: 1pcs
Battery Capacity: 5V 230mAh
Product Size: Approx. 100x66x20mm/3.9x2.6x0.8in

Package List:
1*Multifunctional Altimeter
1*User Manual
1*Wiping Cloth
1*USB Cable
1*Lanyard