The Nika display is a vertical rectangle with a black background and white lit symbols. The symbols include:
- A sun for Comfort Mode
- A moon for Eco Mode
- A snowflake for Anti-Freeze Mode
- A clock for Timer Mode
- An open window for Open Window Detection
- A thermometer for Low Surface Temperature (LST) Mode
- A horizontal zig zag to indicate the device is heating
- A WiFi symbol to indicate whether the WiFi is connected
- A key to indicate a child lock
- A horizontal bar at the bottom of the display to indicate the current daily schedule.
The buttons include a timer shortcut button (PROG), an up button (+), a down button (-), a mode change button (checkmark), and an ON/OFF button (power symbol).
https://www.electricradiatorsdirect.co.uk/manuals/reina/Reina-Nika-Manual.pdf