The Hobo Remote Monitoring System from Onset Computer Corporation is an industrial-grade data logging system designed to provide energy managers and others with instant access to energy and HVAC/R systems data via the Internet. The system combines data logging hardware with built-in GSM cellular communications and Hobolink, a Web-enabled software platform. Hobolink allows users to access current and historical data, set alarm notifications and relay activations, and manage and control the systems their desktops. The remote monitoring system also provides fully integrated data logging and cellular communications in a single unit, eliminating the need for users to integrate components separately. Users have access to a wide selection of sensors for measuring a range of parameters including temperature, relative humidity, kW, kWh, AC voltage, AC amps, DC amps, gauge and differential pressure, CO2, and more.