The +
- GSM Siemens guarantee of quality = all that is described in the Siemens doc (not provided by SainSmart, recover on the Siemens website) works!
- Very good quality / price / performance
- You can find all the doc hardware / software on the NET
Les -
- Communication software to install on PC, provided by SainSmart is in Chinese and does not work on my config (X64). Little / No support SainSmart
- Doc SainSmart very basic - very insufficient to operate the map
A person knowing use of a PC communication software, can read the docs in English, and who can write software that will control module