I just read a 22-page detailed report/review of the Whistler TRX-1 and TRX-2 scanners on the Scanner Master website. The report/review was authored by Richard Carlson and is copyrighted 2016 by Scanner Master. On page 1 of the 22-page pdf version of the report/review it states the following:
"Once remaining stocks of the “WS” series scanners are sold they will likely no longer be available except on the secondary market."
Based on that quote it appears that only the TRX-1 and TRX-2 will remain after all of the remaining WS series scanners have been sold. The entire 22-page report can be read/downloaded here in pdf format: https://www.scannermaster.com/v/vspfiles/files/pdf/TRX Review.pdf
"Once remaining stocks of the “WS” series scanners are sold they will likely no longer be available except on the secondary market."
Based on that quote it appears that only the TRX-1 and TRX-2 will remain after all of the remaining WS series scanners have been sold. The entire 22-page report can be read/downloaded here in pdf format: https://www.scannermaster.com/v/vspfiles/files/pdf/TRX Review.pdf