AEMC L322 Process Control Logger, 4 to 20mADC. More details: Process Control Logger, Current Range 4 to 20mADC, 2 Current Channels, Current Accuracy 0.50%, Phase Single, Power Source (2) AA Batteries, Protection Rating IP50, 100 hrs. to 45 Days Recording Capacity, Sampling Rate 8 Samples per Storage Interval, Safety Rating CAT III 50V, Interface USB, Includes Batteries, Software, USB Interface Cable and Instructions