来自 Gill GPS Tracker 的消息：
Tips: GPS tracker with multi discrete input and output /Attn: purchase manager
This is Anna,the sales manager of Redview GPS in China.
VT310 is a GPS tracker with 5 discrete inputs ,5 discrete outputs and 2 analog ports . With VT310,you can get vehicle windows status, door status, engine status, temperature and tank fuel level ,etc. This is widely used in truck tracking application.
I would appreciate if you forward this letter to Technical Manager or to other expert responsible for technical integration of new products in your company, or provide me with his contact for we could discuss all the details of our future cooperation.
Your early reply is highly appreciated.