Data loggers record data over time or in relation to location either with a built in instrument or sensor or via external instruments and sensors. A data logger is often based on a digital processor; some data loggers interface with a personal computer and utilize software to activate the data logger and view and analyze the collected data, while others have a local interface device (keypad, LCD) and can be used as a stand-alone device. ATEC offers affordable data logger rental rates for products from leading manufacturers like Fluke, Keysight and Yokogawa.