(datasheet-js320)= # Joulescope JS320 Datasheet The Joulescopeā„¢ JS320 is a precision DC energy analyzer. It measures current and voltage, then computes power, energy and charge. It measures current over ten orders of magnitude, from amps down to nanoamps, with fast autoranging and minimal voltage drop. ```{include} ../js320/_key_features.md ``` The [Joulescope JS320 User's Guide](../js320/index.md) describes how to use the instrument. The specification values are also available as [js320.yaml](/products/datasheets/js320.yaml). ```{include} _js320_specifications.md ```