The LGR-5320 series of stand-alone, multifunction data acquisition loggers from Measurement Computing allows users to collect high-speed correlated analog and digital data without a computer. The devices feature 16-bit resolution as well as 16 analog and 16 digital inputs and four encoder inputs, and they perform high-speed measurements of up to 200 kS/s directly to a secure digital (SD) memory card. Using analog and digital triggering options, users can collect data to monitor systems and events without dedicating a PC. The LGR-5320 loggers ship with DAQLog software to configure the devices and retrieve data via the USB interface or standard memory card. Each device includes a 4-GB SD memory card and is expandable up to a 32-GB SD card for collecting up to 16 billion measurements.