Records time and date stamped DC voltage data. Accepts voltage signals from sensors, transducers and many other common voltage sources. Features user-programmable Engineering Units and offset/gain calculations so input voltages can be scaled to proper units being measured. For example, a flow rate sensor with a voltage output can be displayed as flow rate in the software graph and data. Four different voltage ranges are available. (±100mV model features differential input capability). Four channel, screw terminal inputs.