New compact hand-held multifunction altimeter altitude meter/barometers/thermometers/electronic compass with backlight/multifunctional altimeter

Features:
The device is ideal for outdoor enthusiasts make the compact equipment. Provides outdoor enthusiasts with a wide range of, must be more precise information such as: electronic height gauge (weather forecast + compass + altitude meter clock + barometer +) blue backlight.

Product parameters:
Dimensions: 90mmx50mmx20mm
Weight: 60 g.

Material: ABS colour: silver grey

One, the product description:
The device is ideal for outdoor enthusiasts make the compact equipment. Provides outdoor enthusiasts with a wide range of, must be more precise information such as: electronic height gauge (weather forecast + compass + altitude meter clock + barometer +) blue backlight.

Second, the product features: altimeter: • 700 m to 9000 meters ( -2300~2950ft) measuring range (altimeter can do initial calibration) 1 meter or 3 feet gauge • resolution: • 300mbar 1100mbar • measuring range resolution 0.1mbar. Electronic guide needle: • 8-azimuth mode displayed • external magnetic field correction • precision ± 3 degrees • resolution: 1 degrees thermometer: • measurement range-10 ℃ ~ + 60 ℃ (℃ and f units can selected) • 0.1 degrees resolution weather forecast and time: • forecast 12-24 hours Hou of weather status • 4 species weather status indicates: fine – half fine – cloudy – rainy day • 24 hours time format electronic backlight: 5 seconds high brightness blue LED electronic backlight
Power: use AAA-7 2 batteries Accessories: matching neck hanging one, instructions in English.

Notes:
1 to avoid the rain, moisture, temperature is too high or too low case, (operating temperature: 0 ℃-50 ℃ storage temperature-20-70 ° c);
2, avoid perfumes, alcohol, cleaning agents and other corrosive substances;

3, avoid what may affect the direction the magnetic compass was used: a, near the concrete/steel buildings b? ⒗ ⒌ invoke Zeng Jing Fu? C away from appliances (such as computers, TV, VCD, fax machines, speakers, etc) very close to d, free from a lot of steel or metal bridge was built near e, in moving vehicles (car, train, plane) is very close to f, near or on metal plate surface

Some notes on electronic altimeter:

1. this principle is achieved through sensors sensors measure the height difference between the atmospheric pressure change. the batteries.
2. in the same place, different weather conditions (sunny and rainy days), or from time to time (such as morning and evening) air pressure change, as long as the pressure changes, the height value will be displayed. (Such as zero down on the table at noon, evening show with a height of 16 meters, because here. because of the low air pressure in the evening, according to the impairment of air pressure height is increased.)
3. show us the absolute altitude values? Answer: no way to display directly. Must have a place of absolute altitude values as a reference. (20 meters above sea level, for example somewhere you at that altitude correction for 20 metres, and then to your floor, you can display absolute altitude values.

4. correction a month ago still accurate? Likely not, because 2nd.

5. I corrected in Beijing, Tibet work? Likely errors are a little more, because is also the 2nd
6. how to judge this device is accurate? The easiest way is right downstairs, put it to zero, and then began to climb the stairs, side, side height has changed. It is best to lift, look at digital direct have been jumped, but sometimes a few seconds delay.

7. batteries must be for good. Many errors or functional disorders, mostly caused by batteries not.

For example: owner, 5/f, zero on the first floor, on the floor, showing height of 13 meters. Through GPS measured 213 meters above sea level, and after correction, to the five-floor, display value is 226 meters above sea level.
Chinese provincial capitals, municipalities, and autonomous regions and altitudes in some major cities rank (Note: the following statistics are for the downtown area with an average altitude) Lhasa rikaze 4000 m Lijiang, Shangri-La Golmud 2808 m------3280 m--3658.0 m--2418 m--2261.2 m--1891.4 Mi Yinchuan-Kunming, Xining-1111.5 Guiyang, Hohhot,--1071.2 m------1063.0 m XI ' an, Chengdu, Urumqi, Taiyuan,-------917.9 m---777.9 m---505.9 m---259.1 m---396.9 m Chongqing Changchun---236.8 m Harbin, Dalian, Zhengzhou-171.7 m---110.4 m----84.0 m----92.8 m Fuzhou Xiamen, Nanning, Qingdao, Shijiazhuang--80.5 m----76.0 m----72.2 m----63.2 m Hangzhou, Jinan, Changsha, Nanchang,----51.6 m----46.7 m----44.9 m----41.7 m----41.6 m----32.0 m----31.2 m in Beijing, Hong Kong, Shenyang, Hefei, Haikou Wuhan----23.3 m----29.8 m-----9.0 m----14.1 m Taipei Nanjing, Ningbo, Shanghai, Guangzhou-----8.9 m-----6.6 m-----4.5 m-----4.2 m Tianjin-----3.3 m
Tibet's major lakes, mountains and city altitude table
Lake name location elevation height (meters) characteristics that wood wrong when 4718 salt water, 35 meters deep Ma next Yong wrong Pollan 4588 freshwater, 81 meters deep lake langkazi 4441 salt water, 51 meters deep Peja ancient wrong Kuala Lumpur 4591 salt water bassoon wrong gongbo ' gyamda 3460 structure Lake class public wrong Turkish 4241 East freshwater, West salt water, 41 meters deep so black wrong Basu 3850 mountain name location elevation height (meters) Everest tingri 8848.13 Lhotse tingri 8516 makalushan tingri 8463 xixiabangmafeng nyalam 8027 Cho Oyu tingri 8201 namunanifeng citalopram 7694 nyainqentanglha Feng damxung 7162 namjagbarwa linzhi 7782 City (town) altitude (meters) Ando 4800 nagqu 4507 qamdo 3240 damxung 4200 Bomi 2750 3658 linzhi 3000 zetang 3500 in Lhasa rikaze 3836 Gyantse 4040 tingri 4300 4300 shiquanhe 4300 Parry Pollan 3700 Turkish 42 50