Onset’s MX1101 data logger measures and transmits temperature and humidity data wirelessly to mobile devices via Bluetooth smart technology. The self-contained wireless data logger, which works with the free HOBOmobile app for logger setup and data management, enables the user to access data over a 100’ range at any time from an iOS mobile device. These capabilities, combined with audible and visual alarm notifications, make the device ideal for use in a range of building monitoring applications.