Main Feature: - Ideal for fishing, driving, climbing, skiing, camping, cross-country, travel ect
- A. The effects of air pressure on the human body
- Around 3,000 m:Dry eye nose and mouth, dizziness, asthma (Normally people would have altitude sickness), the dial is displayed as "AHDA"
- Around 4,000 m:to feel oppressed feeling, Increased gastric acid secretion, Rapid increase in blood glucose levels, the dial is displayed as "AHDA Ⅰ"
- Around 5,000 m:Chest tightness, Shortness of breath, Nausea, Vomiting, Nervous system resulting in the apparent obstacles, The dial is displayed as "AHDA Ⅱ"
- Around 8,500 m: Physiological limit point of life
- B. Relation between air pressure and fishing (Dial disc by "fish" icon)
Air pressure(hPa) | Temperature(℃) | Weather | Fishing level |
1,006—1,028 | 29.81~30.42 | Cloudy to sunny | Good |
1,002—1,006 1,028—1,054 | 29.7~29.81 30.42~31.17 | Cloudy to sunny and sunny | General |
> 1,002 < 1,054 | > 29.7 < 31.17 | Overcast and rainy | Bad |
- C. Relation between height and boiling point
Height | 0m | 3,000m | 6,000m | 8,800m | >10,000m |
Point | 100 | 91 | 80 | 72 | 11-18 |
- Note:Boiling point of water to with change from Sea level of height
- Relation between air pressure and height
- Height measurement (outer circle)Measuring range 0—8,000m
- ① Absolute height measurement:If the reading of height does not match your location height, you may calibrate manually. Specific measurement: rotate exoteric circle to calibrate, so that the pointer will point to the height of your location. (Note: when climbing the mountain or hiking, You can obtain the information of the real height from maps and other resources;Because the air pressure and weather change have an effect on the reading of height. Therefore, it is necessary to compare the reading of height with known height necessary)
- ②Relative height measurement:Before going to start, set the pointer at zero(0m). When climbing the mountain , you can measure the relative height compared with the starting height
- Air pressure measurement: (inner circle)Measuring range 264.4—1,050hPa
- This can predict the weather trends. In general, the rapid increase of air pressure indicates there will be a good weather. A quick drop of air pressure means there will be a sudden change in the weather, a short shower and so on. If the air pressure drops to 980hPa or below means there will be snow or nowstorm
- 1) In accordance with ICAO standards, Pressure value:1,013.25 hPa or 760 mmHg(15℃), Below this value shall be low pressure, on the contrary, it shall be high pressure
- 2) If you want to find out the accurate air pressure and weather trend in different areas, please compare it with the standard air pressure (1,013.25hPa, 760mmHg)
- 3) Air pressure changes within a day and a night: (1) Around 10:00 am each day, the air pressure reaches the maximum value, then decreases gradually. (2) Around 16:00 pm, the air pressure hits the minimum value, then increases gradually. (3) Around 22:00 pm , the air pressure reaches the maximum value, then decreases gradually. (4) Around 4:00 am next day, the air pressure hits the minimum value, then increases gradually. (5) In general weather conditions, the air pressure changes in the range of 2-3hPa
- Weather information sheet
Weather conditions | | Value | | Weather Conditions | Notes |
Cool, the weather gets warm tomorrow, Cloudy | | 1,050 | | Rain with a southwestern wind | 1:Measurement standard is with reference to the world unified standard of 25 ℃ 2: In general, people will have altitude sickness in 3,000m height (pressure value of 700hPa) . 3:If air pressure increases sharply means there will be a good weather 4:If pressure decreases rapidly, the weather will change in the future or more showers are coming |
After wind and rain, the weather gets warm | 1,040 | Tonight Clear, cool, The wind direction is changeable. |
There will be Rainstorm | 1,030 | Weather may turn cold and windy |
Cloudy, Warm, Windy | 1,020 | Sunny, the wind dies down |
Dry, Cold, Windy | 1,010 | Today and tomorrow by the sunny weather , breeze slowly |
Sunny day, tomorrow weather gets cool with a light breeze | 1,000 | Cold air will attack following strong wind |
Tomorrow is a cold day with gale | 990 | Dry and cold with strong wind |
Below 980 means strong storm. In winter, snow or cold wave will attack within 24 hours | 980 | The weather is very cold, Storm |
900 | Continuing Storms, Cold weather, Rainy weather |
Specification: - Weight: 0.16 kg
- Product Size: 8 x 7 x 2.7 cm
- Package Size: 13.5 x 13.1 x 3.6 cm
Package: - 1 x Barometer with Altimeter
- 1 x Strap
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