Question about Timex Expedition WS4 WideScreen 4 Function Watch for Men
You should carefully read the manual on this watch. It is a very sophisticated instrument realitive to its cost.
The barometric pressure in the CAL mode is set to the reference sea level. The pressure that is read in the other areas is the actual or relative pressure at your location.
There are some tollerences for the accuracy of these watches. What they are excellent at is seeing the relative differences or changes. I found that when I set the reference barometric pressure (Sea Level Pressure), everything falls in to place. I found the WP4 to be accurate to within about 15 to 20 feet accuracy for altitude most of the time. It is important to periodically check the barometric pressure from the weather office if you want it to be as accurate as possible.
When hiking or out trecking, it is advisable to check the watch's altitude relative to the map that you are using, or to a known reference. Then as you travel you can check for the altitude change.
Take care that this type of watch is to be used as a quick or easy reference only. It is not certified to be used in situations where life and safety are fully dependent on the readings from this type of watch. It is a precision instrument, but not as precise as the high end professional certified types. It is best to refer to proper maps (charts), and depend on a certified mechanical compass for absolute reference.
Posted on Oct 28, 2012
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Posted on Jan 02, 2017
SOURCE: Incorrect altitude changes
Here is the link to the user manual for this watch if you need it; http://www.lacrossetechnology.com/k2100/manual.pdf page 12 gives you all the contact details for lacrosse. I couldnt find the info online to be sure, but some of these watches do have a separate pressure sensor for altitude and barometric pressure, and sometimes the path to one could get blocked or it could become faulty. I would contact la crosse and find a dealer to get the watch serviced, you could probably do it yourself but you need to get replacement seals from them anyway (these are important). ask them to check if the sensor is clogged, it happens sometimes. Hope this helps :)
Posted on Apr 14, 2007
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