| Product Specification

Otii Ace Pro

Advanced yet easy to use. Power profiler, DC energy analyzer, power supply, digital multimeter, SMU, power debugger - all in one solution.

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Source (Voltage)0-25
Source (Power)up to 30W, 50W peak
Sink (Power) - requires extra licenseup to 15W, 125W peak
Current Resolution0.4
Current Accuracy±(0.05% + 25 nA)
Voltagr Accuracy±(0.01% + 1 mV)
Voltage Sample Rateup to 50ksps


Otii Ace Pro is the big brother to Otii Arc Pro and is an instrument that can precisely source voltage or current and simultaneously measure voltage and/or current. It computes power and energy, and syncs with software output, enabling engineers and developers to easily see what drains the energy and optimize the battery life of their devices under test. Created by and for hardware and software developers. Now for higher power and sample rates.

Even bigger features in a small package

Otii Ace Pro is the more advanced version of our popular energy optimization tool. It sources voltage (up to 25 V) and current (up to 5A) while simultaneously measuring voltage and/or current with a high sample rate (50ksps) and low step size. There is no burden voltage. The tool can be used in an inline set-up or as an isolated power supply and, with an upgraded software module, also as a battery emulator. One of the key features is UART sync with measurements, which provides insights into software and what drains the energy.

Otii Ace Pro comes with a best-in-class UI and performance and Otii Pro software for Windows, Ubuntu, and macOS.

Otii Ace Pro can be used for

  • Powering your devices under development

  • Energy profile microcontrollers, sensors, devices and electronics up to 25V in real-time and over time

  • Optimizing sleep current and extending battery life

  • Estimating battery life

  • Measuring inrush current

  • Measuring component leakage current over time

  • Designing power-efficient hardware, firmware and software through regression testing

  • Troubleshooting your hardware and software

Otii Ace Pro comes with featured-packed Otii Basic perpetual software and 1-year Otii Pro software. Additional software modules can be purchased to use it with scripting and to profile and simulate batteries and energy harvesting solutions like solar panels.



energy storage systembatteriesBattery lifebattery management system (BMS)Energy optimization

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