> For the complete documentation index, see [llms.txt](https://wiki.inels.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.inels.com/inels-home/inels-wireless/devices/receivers.md).

# Receivers

Everything that switches, dims or moves a load in iNELS Wireless — relays, dimmers, shutter and fan-coil units.

*Part 3 — Unit reference.*

A **receiver** (actuator) does the work: it switches a light, dims it, moves a shutter, controls a fan coil. It listens to the transmitters it has been paired with and does what the **number of presses** chose when you paired ([Appendix B](/inels-home/inels-wireless/appendix-b-functions-by-number-of-presses.md)).

| Type                     | Products                                                                                                                    | Page                                                                                                     |
| ------------------------ | --------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| **Switch units**         | RFSA-61B / 62B / 11B, RFSA-61M/MI, RFSA-66M/MI, RFSAI-xxB-SL, RFUS-61 (IP65), RFSC-61N (socket), RFSZ-11/MPW (smart socket) | [Switch units](/inels-home/inels-wireless/devices/switch-units.md)                                       |
| **Dimmers**              | RFDEL-71B-SL, RFDEL-71M, RFDEL-76M, RFDA-73M/RGB, RFDSC-71N, RFDAC-71B-SL (0–10 V), RFDALI-04B/32B-SL                       | [Dimmers](/inels-home/inels-wireless/devices/receivers/dimmers.md)                                       |
| **Shutter units**        | RFJA-32B-SL, RFJA-52B-SL/ISC, RFJA-52H/ISC, RFJK-22/MPW                                                                     | [Shutter units](/inels-home/inels-wireless/devices/receivers/shutter-units.md)                           |
| **Heating and fan coil** | RFSA-266M, RFSTI-11B-SL, RFATV-2                                                                                            | [Heating and fan-coil units](/inels-home/inels-wireless/devices/receivers/heating-and-fan-coil-units.md) |

## What every receiver has in common

* It is **wired** to the supply and the load (or powered from the battery, for valve heads).
* It has one **PROG button** that does everything: manual control, programming and clearing. How long you hold it matters, and **differs per unit** — see [Appendix A](/inels-home/inels-wireless/appendix-a-prog-button-times.md).
* It holds the **memory of paired buttons** (for example 25 on the RFSAI-61B-SL).
* The **LED** shows the mode it is in — see [How programming works](/inels-home/inels-wireless/how-programming-works.md).
* It also has an **address** (printed on the unit) that a [gateway](/inels-home/inels-wireless/devices/system-units.md) uses to add it to the app — see [Adding paired devices to a gateway](/inels-home/inels-wireless/devices/system-units/adding-paired-devices-to-a-gateway.md).
* To pair one: [Tutorial 1](/inels-home/inels-wireless/tutorial-1-your-first-button-and-light.md) (switch), [Tutorial 3](/inels-home/inels-wireless/tutorial-3-dimming-and-light-scenes.md) (dimmer), [Tutorial 4](/inels-home/inels-wireless/tutorial-4-blinds-and-shutters.md) (shutter).