The Solinst Telemetry Systems are designed for use with the Solinst Levelogger Series of dataloggers. They offer two-way  communication and control from your own desktop. You choose  the Levelogger, the best communication method to suit your site,  access the intuitive software to create sampling and reporting  schedules, then view and manage data on your Home Station  computer in any way you choose.  STS Gold Systems can be set up using GSM or CDMA digital  cellular, landline, radio, or satellite wireless communications.  They are powered by a sealed lead-acid 12V battery, with  optional solar trickle charging or direct AC power. RRL Gold  Radio Stations use six replaceable lithium batteries, and also have  the option of a back-up power source. STS Gold Telemetry Systems are ideal for large networks.  Hundreds of remote stations can report to a single Home  Station computer. RRL Gold Radio Telemetry is ideal for small closed loop networks. With the choice of cellular, radio, landline (Ethernet) or satellite, STS Gold Systems provide communication options to suit your  site and application. To determine the best method to meet your  requirements you need to evaluate the options available in your area i.e. cellular carriers, and the physical conditions of your site, including topography, nearby buildings, trees, etc. Choosing to communicate using digital cellular or satellite gives  the advantage of IP addressability. IP (Internet Protocol) allows a reliable method of data transfer using an internet connection, which saves you time and money. An IP Network allows all  Remote Stations to send data to the Home Station at the same time, without disruptions or time scheduling issues.