Terminated: unknown
For some reason this calculator doesn’t have a specific type designation. At the back of the calculator this one is called model 102831 5.
The LED display has a purple shine but the numbers are displayed in red. The magnification effect of the display is quite good. A special feature is the sigma slider. This key changes the behaviour of the "="-key. When this slider is to the left, the "="-key automatically adds the calculation result to the calculator’s memory. When the slider is to the right, the "="-key behaves as a plain "="-key.
The calculator is quite thin, and therefore the power adapter is connected by plugging into two small holes at the top of the calculator.