It can be used to transfer an information about the contact status (close) - e.g. detector, button, technology, output.
2 types of switchers: RFIM-20B - 2 inputs, intended for switching with button or impulse, and also for permanent contact = switch. RFIM-40B - 4 inputs, intended for switching with button or impulse.
Technical description
2 inputs enable your to control 2 units independently of each other.
After pressing the button, the set commands are transmitted (ON/OFF, dimming, scheduled OFF/ON, roll up / down).
The possibility to set scenes - by one touch you can control more iNELS RF Control units.