TECHNICAL SYSTEMS 2002 AEMC Simple Logger II Model L481 bipolar 850Vdc data logger allows operator to configure unit to optimize memory usage to specific application. Extended Recording Mode (XRM) and delayed start time are two of many application friendly features in this logger. Internal memory allows storage of more than 240,000 measurements, more than enough for most data collection needs. User programmable scale and engineering units are available. Battery operation and compact size allows for installation in tight locations without the need for external power.