Loctite Otii DC Power Analyzer, 5A Max, 4.2V Max

Power supply, monitoring and analysis in one easy-to-use and feature-packed product, the Otii by Qoitech is the ultimate tool for any developer aiming to design highly energy-efficient IoT projects. Otii includes the Otii Arc measurement unit and the Otii software for Ubuntu, Windows & macOS. This product comes with a lifetime subscription to Otii Basic Software. Connect Otii Arc and power your device directly to the DC input or battery connectors. It will act as an up to 5V DC power supply and a high-resolution voltage and current measurement unit. Otii software will give you real-time measurements and generate statistics based on the entire data set or small subsections even during the recording process.

Records currents, voltages and power and displays them in real-time as charts and interactive measurements
Measurement sample rate of up to 4k samples per second
Wide dynamic current measurement range nA-5A, resolution of 5nA
Current measurement accuracy is ±(0.1% + 50nA) for currents below 19mA and ±(0.1% + 150uA) for higher currents. The accuracy for voltage measurements is ±(0.1% + 1.5mV)
If going beyond USB capabilities, it requires an external power supply. Note: If using a Yellow USB port or with a lightning symbol, often they can power up to 1500+mA without the need for an external power supply. Check your USB port power limits for more info.
Data + Power via USB. Optionally 2.1mm DC jack for external power exceeding USB power capabilities.
ADC subsystem measurements with a differential measurement range of -81.9175 mV to 81.92 mV
Two General Purpose Inputs
Quick to use – download the Otii app, connect Otii Arc via USB to your computer, start the app and you can start your measurement project
Real-time analysis

IC Clips – these will fit into the Arc black and red outlets, which then connect to your device under test. You could use any standard banana plug style connectors though.
If available, use a Yellow USB port or one with a lightning symbol to increase the power supply limit from 500mA to 1500mA (sometimes, these ports can go up to 3Amps).

If you are powering devices beyond USB power constraints and would like to interface with the 14 port header, then read on.
27W Switch Mode Power Supply – set this variable supply to 7.5 Volts and your Arc will be able to power the device under test well beyond the USB limitation.
SMD Clips and Through Hole Clips (Red / Black) – the 14 pin connector on the Arc has a standard 2.54mm pitch, so you can use any female headers and crimps to make your leads to suit your project along with a stranded wire for better flexibility.
USB Type A Female Breakout – this is a useful combination for USB device testing. The female connector can then be used with any Type-A cable, which adapts to a Micro B or other popular USB variants. To enable Otii Arc to power 5V devices, in the projects settings menu, disable Current “Auto range.” This will unlock the main voltage from 4.55V to instead be 5V back on the Supply tab for your project setup.

Otii Arc is a small, portable power supply, a current and voltage measurement unit and a data-acquisition module. It can be powered by USB or by using an external DC adapter.
Otii Arc comes with Otii Basic software. Made for hardware, firmware and software developers.