Inventory info from 10-q. They have enough inventory for several quarters. Also shows the costs associated with test units.



NOTE 4. INVENTORIES

Inventories consist of the following at September 30, 2009 and December 31, 2008:

September 30, 2009 December 31, 2008
Raw material and component parts $ 4,347,913 $ 4,783,730
Work-in-process
1,492,432 1,282,140

Finishedgoods 3,117,029 2,823,212
Subtotal 8,957,374 8,889,082

Reserve for excess and obsolete inventory (863,875 ) (529,121 )

Total $ 8,093,499 $ 8,359,961


Finished goods inventory includes units held by potential customers for demonstration, test and evaluation purposes. The cost of such units totaled $526,952 and $273,017 as of September 30, 2009 and December 31, 2008, respectively.