AMTAST Barometer Altimeter Thermometer Weather Forecast Monitor for Climbing Camping Outdoor Sports, Multi-Function with Backlight

• Barometer & Altimeter: The air pressure value on the screen is the air pressure at the current location. The height value on the screen is the sea level of the current location. Press ALTI/+ button to switch the use of altimeter and barometer.
• Relative Altitude: Monitor the ascending or descending altitude from one certain location or the relative altitude for any mountain or object etc.
• Brand: AMTAST

Barometer & Altimeter: The air pressure value on the screen is the air pressure at the current location. The height value on the screen is the sea level of the current location. Press ALTI/+ button to switch the use of altimeter and barometer. Relative Altitude: Monitor the ascending or descending altitude from one certain location or the relative altitude for any mountain or object etc. Weather Forecast: Apart from detecting the altitude, barometer also helps to forecast the weather for the forthcoming 12 to 24 hours basing on barometric pressure changes. The effective range is 30-50kms. History Altitude Record: Press HISTORY button, you can view records of history altitude and air pressure. It will display the most previous record in this mode, then you can press ALTI/+ or - button to forwards or backwards view history records. It can save most 256pcs records, the records’ distance are five minutes, and you can change the distance from 1-60 minutes if you press and hold HISTORY button for 2 seconds.