1. [4 in 1 Outdoor Instrument] This kit combines compass, altimeter, barometer, and temperature meter, displaying real time directional, altitude, air pressure, and temperature data for outdoor navigation
2. [Portable Design] The compass and the altimeter can be connected together and can be linked with a hook for easy attachment, making it convenient for you to carry this device during outdoor activities
3. [Long Lasting Durability] Engineered with ABS material, this altimeter operates without battery, withstands extreme conditions, and requires no maintenance for dependable performance in adventures
4. [Range and Resolution] Measures altitude from 0 to 5000 meters with 20 meter resolution, this portable altimeter provides accurate altitude readings for mountaineering or aviation enthusiasts
5. [Air Pressure and Temperature] The air pressure measurement range is 580-1040hPa, the temperature measurement range is -30-50℃. It features intuitive pointer type, offering convenience for your outdoor activities

Spec:
Item Type: Multifunction Altimeter
Product Material: ABS
Altitude Measurement Range: 0-5000m
Air Pressure Measurement Range: 580-1040hPa
Temperature Measurement Range: -30-50℃
Resolution: 20m
Dial Size: Approx. 60mm / 2.4in

How to Use:
Simply use it directly.

packing list:
1 x Altimeter
1 x Compass
1 x User Manual