The OctVoltV2 is an 8-channel, battery powered, DC voltage data logger with reading rate up to 4 Hz reading rate. It can measure and record up to 174,592 readings per channel. To maximize memory capacity, users can enable or disable channels. For easy identification, each channel can be named with up to a ten digit title. This easy to use device features a 1 year battery life, user replaceable battery and programmable engineering units. The storage medium is non-volatile solid state memory, providing maximum data security even if the battery becomes discharged. Using the MadgeTech Software, starting, stopping and downloading from the OctVoltV2 is simple and easy. Graphical, tabular and summary data is provided for analysis and data can be viewed in multiple units, using the Engineering Units function. The data can also be automatically exported to Excel® for further calculations. Madgetech data logger software.