Worry, don't buy online. Most of the Internet is pirated. The money was spent very little, but it was not needed that day. Not to mention the waste of money, it is also in vain to record data! Buy the popular version of Trade Treasure, quote 980 tubes, and conduct on-site installation training. If you don't need to make an invoice at home, it will be lower. Call the local number 1 14 to inquire about UFIDA!