The MadgeTech Volt101A voltage data logger is a versatile data logging device with many uses and applications. Users can connect negative and positive wire leads directly to the terminal port on the Volt101A to monitor and measure voltage levels. The Volt101A is commonly used to assess battery efficiencies or photovoltaic studies to identify how much energy is being created from solar cells.

The Volt101A features a removable terminal block to allow for simple retrieval of the data logger for downloading while leaving the leads connected. With a ten-year battery life and the ability to store over 2 million time and date stamped readings, this device is ideal for long term deployment and voltage studies.

Four models are available: the 3.2V is capable of measuring -3V to 3V, the 24V is capable of measuring -8V to 24V, and the 32V, which can measure from -8V to 32V. For lower voltage applications that require a higher resolution, MadgeTech also offers the Volt101A 160mV differential model, which can measure voltage between -160 and 160mV.

Using the free MadgeTech software, starting, stopping, and downloading from the Volt101A 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.