Power profiler, DC energy analyzer, power supply, digital multimeter, source measure unit, power debugger. One box to rule all.
Now for higher voltages.
Still easy to use, yet more advanced.
Power supply: 0V-25V
Wide dynamic range: nA-5A
Current measurement resolution: 0.4nA
No burden voltage
Adjustable sample rate up to 50ksps
Isolated power supply
UART sync with the measurements
Best-in-class multiplatform UI and software
Otii Ace Pro is the big brother to Otii Arc, and is an instrument that can precisely source voltage (up to 25 V) and current (up to 5A) and simultaneously measures voltage and/or current with a high sample rate (50ksps) and low step size. It computes power and energy and enables engineers and developers to easily see and optimize the energy consumption and battery life of their devices under test.
It comes with featured-packed Otii basic perpetual software and 1-year Otii Pro software.
Use Otii Ace Pro every day to:
and much more!
Otii Ace Pro is a 2 quadrant source measure unit (SMU) with a constant voltage/constant current source and sink and a high precision multichannel multimeter.
Use it as an isolated power supply, 0V-25V. Use it as a power analyzer/profiler to record and display real-time currents, voltages, power and/or UART logs. It provides less than nA resolution current measurements with adjustable sample rate up to 50ksps. The high sample rate and low step size enable accurate analysis of current consumption and inrush current.
Otii Ace Pro has active voltage regulation and compensates for burden voltage.
Connect several Otii Ace Pro devices in series and parallel to increase voltage and current capabilities. Measure systems where battery negative terminal is not the system ground. Measure with your energy source (for example your battery or energy harvester) in series while switching between measurement ranges.
Test and measurement instruments can have killer software and we are here to prove it. The best hardware deserves nothing less than the best software so you get to spend your time energy optimizing your product.
Otii software comes as a powerful yet easy-to-use desktop application for Ubuntu, Windows & macOS.
Check the statistics of the accumulated energy consumption continuously while recording. Compare recordings, hide and show relevant data and stats.
Connect your device to Otii Ace’s expansion port. Log GPIs, ADC subsystem measurements and UART logs. All the recordings are synced to the current and voltage graphs making it easy to correlate power consumption to the application state.
Measure accurately over 9 orders of magnitude from amps down to tens of nanoamps with the wide dynamic range of Otii Ace Pro.
Display and work with accurate visualization of the active and sleep modes on the same screen and in the same project.
From unpacking Otii Ace Pro to measurement in less than 1 minute. Power it by USB C for portability.
Otii Ace Pro measures 10,9cm x 14,4cm x 4,4cm (WxLxH) and weighs 450 grams, just as Otii Arc. It is designed for the office, the lab, and usage at home, as well as field measurements. Also, the innovative mechanical design allows for efficient heat dissipation, hence no fan is needed and therefore no noise.
Min | Unit | Max | |
---|---|---|---|
GENERAL | |||
OPERATING ENVIRONMENT | |||
Temperature | 10 °C / 50 °F | 30 °C / 86 °F | |
Humidity | 30% | 60% | |
MAIN | |||
POWER SUPPLY | |||
Output voltage | 0V | 25V | |
Output voltage setting resolution | 1 mV | ||
Self-consumption | 3.5W | ||
Output power, max continuous | 30W(1,5) | ||
Output power, max peak | 50W(1) | ||
Voltage between USB/DC jack and Main – | -200V(2,3) | 200V(2,3) | |
Voltage between expansion DGND/AGND and Main – | -200V(2,3) | 200V(2,3) | |
PROGRAMMABLE CURRENT SINK ( requires an Otii Toolbox license) | |||
Sink current | 0 A | 5 A | |
Sink current, setting resolution | 1 µA | ||
Sink voltage | 0 V | 25V | |
Sink power, max continuous | 15W | ||
Sink power, max peak | 125W | ||
CURRENT MEASUREMENT | |||
Accuracy 0-5A | ±(0.05% + 25nA) | ||
Resolution | 0.4nA | ||
Internal sample rate | 250 ksps | ||
Analog bandwidth (3 dB) | 50 kHz | ||
VOLTAGE MEASUREMENT | |||
Accuracy | ±(0.01% + 1 mV) | ||
Internal sample rate | 250 ksps | ||
Analog bandwidth (3 dB) | 50 kHz | ||
Output voltage readback resolution | 3.5uV | ||
EXPANSION PORT | |||
UART | |||
Bitrate | 50 bps | 5.25 Mbps | |
DIGITAL I/O | |||
Digital IO operating voltage | 1.2V | Vio | 5V |
VIL Low-level input voltage | Vio*0.2V | ||
VIH High-level input voltage | Vio*0.8V | ||
Imax Maximum sink/source current (total for all GPIOs) | -10mA | 10mA | |
ADC, Differential Analog/Digital Conversion pins ADC-,ADC+ | |||
Voltage input | -10V | 25V | |
Resolution | 12.2nV | ||
Accuracy | ±(0.1% + 1 uV) | ||
Input impedance | >100Mohm | ||
ADC, Single ended Analog/Digital Conversion pins ADC-,ADC+ | |||
Voltage input | -10V | 25V | |
Resolution | 3.1uV | ||
Accuracy | ±(0.1% + 250uV) | ||
Input impedance | >100Mohm | ||
SENSE, pins SENSE- and SENSE+ | |||
Voltage input | -10V | 25V | |
Resolution | 3.1uV | ||
Accuracy | ±(0.1% + 250uV) | ||
Input impedance | >100Mohm | ||
EXPANSION PORT POWER SUPPLY | |||
Output voltage | 0V | 15V | |
Output voltage setting resolution | 5mV | ||
Output current | 600mA | ||
Voltage between USB/DC jack GND and Expansion Port DGND/AGND | -200V(2,3) | 200V(2,3) | |
USB and DC JACK | |||
DC JACK | |||
Input voltage | 7V | 20V | |
Input current | 5A | ||
USB | |||
VBUS voltage(4) | 4.75V | 20V | |
VBUS current(4) | 3A |
Otii Ace Pro comes with Otii Basic and 1-year Otii Pro Software license for free.
Otii Pro and its add-ons – Otii Toolboxes can be purchased monthly, yearly or as a perpetual license.
Otii software runs on Windows, Ubuntu and macOS.
To run Otii Ace Pro, download Otii software here:
Feature | Basic | Pro |
---|---|---|
Basic measurements (current, voltage, power) | ✔️ | ✔️ |
GPI measurements | ✔️ | ✔️ |
ADC (sub-system) measurements | ✔️ | ✔️ |
Save/load projects | ✔️ | ✔️ |
Basic statistics | ✔️ | ✔️ |
Unlimited undo/redo | ✔️ | ✔️ |
Offset calibration | ✔️ | ✔️ |
Export CSV | ✔️ | ✔️ |
Export project | ✔️ | ✔️ |
Downsampling | ✔️ | |
Crop | ✔️ | |
Multiple recordings | ✔️ | |
Record more than 10 minutes | ✔️ | |
Record UART logs | ✔️ | |
Sync data with UART logs | ✔️ | |
Sync multiple recordings | ✔️ | |
Multiple Otii boxes | ✔️ | |
Set sample rate | ✔️ | |
Customize statistics | ✔️ | |
USB-UART | ✔️ | |
Filter log | ✔️ | |
Battery life calculator | ✔️ | |
Markers/annotation | ✔️ | |
Import from another project | ✔️ | |
Import logs | ✔️ | |
Record UART TX | ✔️ | |
Logarithmic scale | ✔️ |
Feature | Otii Automation Toolbox | Otii Battery Toolbox |
---|---|---|
Scripting in any language using JSON API | ✔️ | |
Packaged scripting modules available for Python, Matlab, C#, Java | ✔️ | |
CLI | ✔️ | |
Battery emulation | ✔️ | |
Battery profiling | ✔️ | |
4-wire measurements | ✔️ | ✔️ |
The biggest difference between the Otii Arc and Otii Ace Pro hardware is in the power supply and sampling rate. Otii Arc goes up to 5 V and has the sampling rate of 4ksps and goes Otii Ace Pro up to 25 V and has the sampling rate of 50 ksps.
Here is the detailed hardware comparison between Otii Arc and Otii Ace Pro.
In the package, you will receive Otii Ace Pro with 1-year free Otii Pro Software, a USB C cable and a USB A to USB C adapter.
Otii Pro is the best-in-class software for measuring and analyzing energy consumption. Works on all Otii hardware boxes. Subscribe annually or monthly.
Check out Otii Pro Software features list here.
Qoitech provides the most efficient developer’s hero tool, Otii Pro Software. You can purchase Otii Pro Software monthly or yearly. The subscription renews automatically. Subscribing to Otii Pro Software will allow you to purchase our add-on toolboxes: Otii Automation Toolbox and Otii Battery Toolbox. You can start and cancel these at anytime.
Each registered user and subscription license purchased is valid for one computer.
Start energy optimizing now!
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