Electrical device e.g. heating system controller, indicator, has display designed as indicating device with impression, where impression is visible with switched off display and is invisible by indicator with activated display

摘要

The indicator has a control device that is directly arranged to a heater, and a remote control device. A timer control and/or a space thermostat is provided in a position that is detached by the control device. Signal transmission by a radio is communicated with the control device. A display is designed as an indicating device that shows an operating value, and is provided with power supply with a battery, where the value is visible with a switched off display and is invisible by the indicator with an activated display.