Measurement Computing’s USB-502-PLUS is a battery-powered temperature/humidity logger that offers a cost-effective solution for both long- or short-term logging applications in which accuracy and small size are important. The stand-alone data logger measures and stores up to 16,382 relative humidity and 16,382 temperature readings over the 0 to 100% RH and -35° to +80°C (-31° to +176°F) measurement ranges as well as calculates dew point. Flashing LEDs indicate logging status, and a user-replaceable long-life lithium battery is included, which can typically allow up to one full year of logging. Included with the package is USB-500 series data logging application software. Compatible with Windows 2000/XP/Vista, this user-friendly, intuitive software is used initially to configure the logger, program alarm thresholds, logging rates, start times, and measurement units. When the logger is retrieved from the field, the software provides simple one-click access to download, display, and export the data.