Able to measure and record voltage data on up to 4 channels, battery-operated MCR-4V lets users view real-time readings on integral LCD. Up to 4 units can be coupled for simultaneous measurement and recording using up to 16 channels. Minimum voltage resolution is 10 μV, and sampling rates can be as short as 2 msec. Standalone logger may also be coupled with MCR-4TC Graphing Temperature Data Logger for simultaneous logging of temperature and voltage.