Data Acquisition & Telemetry


Data loggers for temperature and voltage

February 2022 Data Acquisition & Telemetry

Data loggers automatically monitor and record environmental parameters over time, allowing conditions to be measured, documented, analysed and validated. Graphtec is a supplier of data measuring instruments that accurately record strain, pressure, voltage and current data and capture it securely.



The Graphtec GL240 and GL840 midi loggers are universal-input, standalone multi-channel devices that are compatible with Windows, iOS and Android systems.

The GL240 provides faster sampling rates of 10 ms for voltage measurement. Its compact size contains an isolated input system which ensures that signals are not corrupted by inputs to other channels. It comes with built-in 4 GB Flash memory and supports SD cards for memory expansion. Useful functions include a bar chart data display, alarm output function and networking features.

The GL840 midi logger is available in two variants depending on the application. The first is a multiple-input model that is suitable for temperature measurement with multiple channels. The other is a withstand-voltage model which is suitable for stacked high-voltage battery applications or high-precision temperature measurement.

For more information contact Actum Group, +27 11 608 3001, sales@actum.co.za, www.actum.co.za


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