µSMUUltra-compact open source-measure unit
£150excl. VAT
A pocket-sized source-measure unit that runs entirely over USB-C. Sweep solar cells, LEDs, and small devices from your browser, Python, or SweepMe!.
Capabilities
Capabilities
The hardware, firmware, and software are all open source.
±5 V · ±50 mA
Source and measure
Sweep from −5 V to +5 V while measuring up to ±50 mA. Enough for solar cells, LEDs, and most small devices.
100 nA · 0.6 mV
Precision measurement
100 nA current resolution and 0.6 mV voltage resolution make small-area and low-power devices easy to characterise.
±1–50 mA
Programmable current limit
Adjustable compliance from ±1 mA to ±50 mA protects delicate devices while you sweep.
USB-C
Pocket-sized and bus-powered
Runs entirely from a single USB-C cable, no external supply. At 93 × 47 × 25 mm and 55 g, it goes wherever your devices are.
Browser app
Measure with nothing installed
I-V sweeps and data logging run straight from the free browser app, with real-time plotting and CSV export.
Python · SweepMe!
Automation-ready
An official Python library for scripted measurements, plus a dedicated SweepMe! driver for no-code automation.
Used for solar cell characterisation, LED testing, battery testing, sensor calibration, and classroom demonstrations.
Software
Software included
Connect over USB-C and start measuring from the free browser app. Prefer code? Drive the µSMU from Python, or drop it into a SweepMe! sequence alongside your other lab instruments.
- I-V sweeps and data logging directly in your browser, nothing to install
- Real-time plotting and CSV export
- Python library for scripted measurements
- Official SweepMe! driver for multi-instrument, no-code automation
Technical Specifications
Technical specifications
| Voltage | |
|---|---|
| Range | −5 V to +5 V |
| Resolution | 0.6 mV |
| Accuracy | ±(0.2% + 5 mV) |
| Current | |
| Range | −50 mA to +50 mA |
| Resolution | 100 nA |
| Accuracy | ±(0.2% + 100 nA) |
| Current limiting | Adjustable ±1 mA to ±50 mA |
| General | |
| Interface | USB-C (USB 2.0) |
| Connection | 2-wire BNC |
| Sampling | 20 Hz |
| Dimensions | 93 × 47 × 25 mm |
| Weight | 55 g |
Need two channels, ±12 V, Wi-Fi, or current sourcing?
Meet the miniSMU MS01