Most of the Thermal Data Loggers and DAQs in the field have only one ADC in their design. Therefore, a multiplexer is included to scan all the channels that are activated. With a fixed maximum sampling rate for the ADC, the effective sampling rate for scan type thermal data loggers or DAQs will decrease with increase of active channel numbers.

Unlike conventional designs, Chroma Thermal Data Loggers have one ADC for each channel. Therefore, increasing the activated channels will not affect the sampling rate when using Chroma Thermal Data Loggers.