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North Edge Men Sports Watches Waterproof 50M LED Digital Watch Men Military Compass Altitude Barometer

$90.24 $90.14

Availability: 1 in stock

SKU: 32917217348 Category:

1, Altimeter (altitude trend chart and climb rate)

2, Barometer ( air pressure trend chart)

3, Compass

4, Thermometer

5, Weather Forecast

6, Pedometer, step counter, calorie, distance record

7, Time functions: hour, minute, second, year(2000-2099), month, date, weekday,

8, Alarm clock (2 sets alarm clock, )

9, Countdown timer (99:59:59~0)

10, Stopwatch (0~:59:59),

12, Worldtime functions (daylight saving time switch automatically)

13, Corporates digital compass, altimeter, barometer, Thermometer, air pressure trend and altitude trend and altitude trend

14, Button tone on or off

15, Battery life remind

16, EL Backlight

(1) The altimeter works as: When the altitude increases, air pressure decreases accordingly.

so the watch is collecting the air pressure value to calculate the changes in altitude. (Here below is the cross reference table for air pressure and height from International Civil Aviation Organization (ICAO), it explains the reference standard between air pressure and height. )

From the chart above, we know how the altimeter works. Normally the air pressure is constantly changing, so the collected height will have some deviations by this changes, variance tolerances are between + –50 meters. And in actual mountaineering this deviation is negligible. For example mountain climbing altitude for 2000 meters, 50 meters deviation is very little for the whole process, no influence on the actual climbing.

Currently the altimeter for all climbing watch works in this way, so the little deviation in height collection caused by air pressure changing is unavoidable.

3, what is altitude? And what is relative altitude?

Altitude means the vertical height from sea level to the location you stay.

Relative Altitude means the height from the foot to the summit of the mountain, when we go hiking, at the mountain foot we clear the relative height to zero and after we reach the top, the relative altitude on the display is the height of our actual mountaineering.

Here comes a picture for your easy reference.

4, why the weather forecast has a deviation?

(1)For the first time to use the watch, we need to adjust the weather forecast value according to local value, it can be searched on internet.

(2)The weather forecast is foreseeing the weather in 24 hours, not for the nowadays.

5, why the back light is dim?

Under daylight, you may feel the back light is dim, however in the night, in dark room without any light, you will see the back light is bright enough. It is designed for energy saving. Please open below youtube link to see the watch back light effect in dark.

6, Tips for water proof

  1. All North Edge watches are 5ATM water proof, it is suitable for swimming and diving.
  2. The buttons are not allowed to be pressed when whole watch in the water.
  3. The watch cannot be used in hot spring, hot water shower, sauna to prevent from hot water steam.

 

Brand Name

NORTH EDGE

Band Length

25cm

Movement

Digital

Case Material

Stainless Steel

Clasp Type

Buckle

Water Resistance Depth

5Bar

Style

Sport

Item Type

Digital Wristwatches

Dial Diameter

50mm

Band Material Type

Rubber

Case Thickness

14mm

Dial Window Material Type

Glass

Feature

Shock Resistant, Temperature Measurement, Stop Watch, Pressure Measurement, Water Resistant, Compass, Back Light, Chronograph, Multiple Time Zone, Swim, Alarm, Repeater

Case Shape

Round

Band Width

24mm

Model Number

APACHE 3

Boxes & Cases Material

Paper, gift box

Function 1

Altimeter

Function 2

Barometer (air pressure trend chart)

Function 3

Compass

Function 4

Thermometer

Function 5

Weather Forecast

Function 7

Countdown timer

Function 8

Stopwatch

Function 9

Worldtime functions

Function 10

Pedometer

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