EL-USB-4 data logger, a a stand-alone 4-20 ma device with direct USB interface, fits into a computer for easy configuration and data download. It comes with Windows compatible software, which is used for configuration of the unit as well as the download and graphing of data. Memory capacity is 32,000 readings.• SpecificationMin.Typ.Max.Unit • 4-20mAd.c.measurementrange4-20mAd.c. • Internalresolution0.05mAd.c. • Accuracy(overallerror)1%1count • Loggingrateevery1severy12hr- • Operatingtemperaturerange-35(-31)+80(176)°C(°F) • 1/2AA3.6VLithiumBatteryLife*1Year • *dependingonambienttemperature,loggingrateanduseofalarmLEDs.