User's Guide _______________________________________________________________________ 
218  __________________________________________________________________ M211107EN-C 
Technical Support 
For technical questions, contact the Vaisala technical support by e-mail at 
helpdesk@vaisala.com. Provide at least the following supporting 
information: 
-  Name and model of the product in question 
-  Serial number of the product 
-  Name and location of the installation site 
-  Name and contact information of a technically competent person who 
can provide further information on the problem 
Product Returns 
If the product must be returned for service, see  
www.vaisala.com/returns. 
For contact information of Vaisala Service Centers, see 
www.vaisala.com/servicecenters.