This is Duka Small Q Ruler Digital Roulette
On the crowdfunding site Xiaomi Youpin, fundraising started for a very affordable novelty – electronic roulette, the name of which some sources translate as Small Q Ruler. The manufacturer in this case, apparently, is the company Duka.
The device costs only $14. At the same time, it is a very functional product. Roulette is capable of measuring the length of lines on 10 different types of surfaces. The maximum length that roulette can measure is 9.999 meters, while the device can store up to ten measurements in memory.
But measuring length is not the only ability of the device. It is also capable of measuring ambient noise and lighting.
Roulette is equipped with a screen with a diagonal of 1.9 inches and lead only 30 g. The built-in battery lasts up to 3000 measurements. Curiously, the USB-C port is used for charging. And this is when some manufacturers continue to use micro-USB in much more expensive devices.