Need manual for serial # E0825340 model CZ 1500 wt

Question edited for clarity.

There are lots of models, ask them direct.

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download the manual from here: http://www.manualslib.com/manual/533191/La-Crosse-Technology-Wt-8005u.html

You need this part Heise Axxess Gm Data Interface 2006-Up

the code has been changed by the person you bourght off,this can be reset but you'll need to read the manual to do this,or ask the preveuse owner for the code.
or ask them how to reset it :http://www.renault.co.uk/cars/model/newlagunahatch/product.aspx?WT.srch=1

No, this model does not have a light or backlight. Feel free to peruse the manual information at your convenience though, and I do hope I've helped!

WT 2171U manual

http://www.brother-usa.com/Manuals/Default.aspx?WT.cg_n=Support&WT.cg_s=Manuals
I can't seem to locate the 920D model here....but close to....hope this helps.

go here: http://www.casionz.co.nz/default.asp
search for cz101