Altimeter:
1. Display range: -2296 ft to 29500ft (-700m to 9000m)
2. Resolution: 1m/3ft
3. Altimeter measurement: Sea level altitude / Climbing altitude
4. The highest altitude record automatically during climbing: Available
5. Altitude gain/loss calculation: Yes
6. History altitude record: Record altitude every 30 minute
7. Unit: M and Ft unit switch available

Barometer:
1. Display range: 300hpa to 1100hpa (8.8 to32.6inHg)
2. Resolution: 0.1hpa
3. Unit: Millibar and INhg unit switch available

Thermometer:
1. Display range: -20℃ to 60℃ (-4℉ to 140℉)
2. Resolution: 1℃ / 1℉
3. Unit: Celsius and Fahrenheit unit switch available
4. History temperature record: Max / min temperature record

Hygrometer
1. Display range: 20% ~ 95%
2. History humidity record: Max / min humidity record

Compass
1. Display mode: 360o with eight directions
2. Resolution: 1°

Weather forecast
1. Forecast: Forecast for future 12 to 24hours weather
2. Four weather status: Sunny-Slight sunny-Cloudy-Rain

Time & Date
1. Display mode: 24H or 12H available

LED torch
1. LED torch: High-light LED torch

Others:
1. Backlight: 5 seconds high-light LED backlight
2. Waterproof: IPX4
3. USB charge
3. Item weight: 0.31lb / 0.14kg
4. Product dimension: 3.94x2.6x0.67in / 10x6.6x1.7cm

Quick Guide - Turn ON/OFF:
Long press silver button in the center. This meter inside is rechargeable battery, usually no need to turn it off.
Long press silver button more than 7 second scan turn off the meter, but this will lose all data so not suggest turn it off.