The EL-USB-CO is a USB data logger that measures and stores up to 32, 510 Carbon Monoxide (CO) readings over a 0 to 1000 ppm measurement range. The user can easily set up the logging rate and start time, and download the stored data by plugging the module straight into a PC’s USB port and running the purpose designed software under Windows 2000, XP, Vista & 7. The data can then be graphed, printed and exported to other applications.