Preorder today! Shipping starts June 23, 2026.

Our third-generation affordable and easy-to-use instrument enables you to create better, more energy-efficient products. Measure current from nanoamps to amps while simultaneously measuring voltage, power, energy, and charge.

This product kit includes:

• Joulescope JS320 instrument with installed binding post front panel
• 5' USB C to A cable 
• USB A to C adapter
• 25 cm GPIO cable
• Allen wrench (for swapping the front panel)
• Quick start guide
• Factory calibration certificate
• Sticker
• Carrying case

Specifications summary:

• ±15V voltage range
• ±3A current range, continuous (10A pulses)
• 0.1 nA resolution, equivalent to 36-bits of dynamic range
• 200 kHz bandwidth with 1 million samples per second, 24-bit, simultaneous current and voltage
• Rapid 1 μs switching between shunt resistors for seamless dynamic current measurement
• Enwavify™ technology for consistent, accurate measurements through current range changes
• Computes power, energy, and charge
• Sensor ports electrically isolated from USB
• Works with Microsoft® Windows®, Apple® macOS®, and Linux®

See the Joulescope JS320 User's Guide for details. 

Are you familiar with the previous JS220 or JS110? Check out the comparison table to see the improvements with the JS320. Also see "What's new with the JS320?".

All Joulescopes come fully calibrated from the factory. The ISO 17025:2017 NIST-traceable calibration option includes additional testing performed by Tra-Cal, an ANAB-accredited calibration laboratory. 

Download the latest software. Compliance information.

The JS320 is fully compatible with JS220 front panels and accessories. You may also be interested in:

• JS220 Evaluation Kit 1
• JS220-compatible front panels

You can also purchase from our authorized distributors once they have stock.