"The RTR-500BM is a data collector equipped with 4G mobile network capability. It collects data from nearby data and then sends it via cellular network to the free cloud storage service “T&D WebStorage Service” for anytime, anywhere access. It is perfect for situations where you have no PC or LAN available and where there may be strict IT network requirements hospitals and research laboratories. Up to 20 loggers can be connected. PC software “RTR500BM for Windows” or the mobile app “T&D 500B Utility” can be used for initial configuration. The RTR-500BM has a warning monitoring function that sends a warning e-mail via the T&D WebStorage Service and/or SMS when a set limit is exceeded. *To use an RTR-500BM, a SIM card from a carrier or mobile network service must be purchased.SIM CARD NOT INCLUDED"