The maximum official operation altitude of our products is 2,000m (6,561 feet) which is equal to atmospheric pressure of about 80kPa.
Please note that except temperature there are other parameters that are changing when the air density become lower.
Unfortunately we cannot provide an official chart that shows the correlation between the operation temperature and the operation altitude.
Anyway, unofficially, according to the experience normally there shouldn't be any problem to use our product in altitude of 2,134m (7,000 feet).