1. Úvod
The Scimagic-RC 4-Channel Tuya WiFi Smart Relay Switch Module (Model SA2) is an intelligent automation module designed to integrate your home appliances into a smart ecosystem. It supports both Wi-Fi (2.4GHz) and RF (433MHz) control, offering versatile operation through the Smart Life/Tuya Smart App, voice commands via Alexa and Google Home, or a 433MHz RF remote control. This module allows you to remotely control up to four electrical devices, offering various working modes including momentary, self-locking, and interlock modes, along with advanced timing functions.

Produkt skončilview showing compatibility with smart home platforms.
2. Specifikace
| Funkce | Specifikace |
|---|---|
| Číslo modelu | SA2 (Intelligent switch) |
| Vstupní objemtage | AC 100-240V or DC 5-24V (Do not use both concurrently) / AC 85-250V |
| Výstup | Signal output only, no voltage výstup |
| Switching Current Per Channel | <10A (Normally Open), <7A (Normally Closed) |
| Max. Zatížení | 10A/skupina, 16A/celkem |
| Bezdrátové připojení | WiFi 2.4Ghz 802.11 b/g/n |
| Radio Frequency (RC) | RF 433.92 Mhz (Learning code only) |
| Static Power Consumption (SPC) | <1W |
| Provozní vlhkost | 40% ~ 80% RH |
| Pracovní teplota | -20°C až +70°C |
| Velikost produktu | 80 mm x 75 mm x 28 mm (3.46 x 2.52 x 0.98 palce) |
| Kompatibilita | All Compatible (Tuya/Smart Life App, Alexa, Google Home) |
| Osvědčení | CE |
| stav shromáždění | Připraveno k použití |

Module dimensions.
3. Obsah balení
Balíček obsahuje následující položky:
- 1 x Scimagic-RC 4-Channel Tuya WiFi Smart Relay Switch Module
- 1 x Uživatelská příručka
Special Tip: The 433MHz RF remote control is NOT included and must be purchased separately. Only 433MHz learning code remotes are supported; clone codes and rolling code remotes are not compatible.

What's included in the package.
4. Bezpečnostní informace
- Ujistěte se, že veškeré zapojení provádí kvalifikovaný elektrikář a že je v souladu s místními elektrotechnickými předpisy.
- Před instalací nebo servisem zařízení vždy odpojte napájení.
- Nevystavujte zařízení vlhkosti nebo extrémním teplotám.
- Zařízení je určeno pouze pro vnitřní použití.
- Do not exceed the maximum load ratings (10A per channel, 16A total).
- The device only supports 2.4Ghz Wi-Fi for networking and does not support 5Ghz Wi-Fi.
5. Nastavení a instalace
5.1. Pokyny pro zapojení
The module supports both AC and DC power inputs. Ensure you use only one power source at a time. Incorrect wiring may damage the equipment.
AC 100-240V Wiring:

AC 100-240V Input Wiring.
DC 5-24V Wiring:

DC 5-24V Input Wiring.
Load Wiring Examples:
The module provides signal output only. Connect your load (e.g., light, motor) to the NC (Normally Closed), COM (Common), and NO (Normally Open) terminals for each channel as required by your application.

Example: Wiring a light bulb (AC 85-250V).

Example: Wiring an AC motor (AC 85-250V).

Example: Combined AC/DC input with load output.

Important: Device power supply is independent of load power supply.
5.2. Instalace a párování aplikace
- Download the "Smart Life" or "Tuya Smart" App from the iOS App Store or Google Play Store.
- Zaregistrujte se nebo se přihlaste ke svému účtu.
- Ensure your smartphone or tablet is connected to a 2.4GHz Wi-Fi network with internet access. (5GHz Wi-Fi is not supported).
- Power on the Smart Relay Switch Module.
- In the App, tap the "+" icon to add a device. The app should automatically discover the device. If not, select "Add Manually" and choose the appropriate device type (e.g., "Socket (Wi-Fi)" or "Switch").
- Follow the on-screen instructions to connect the module to your Wi-Fi network. You will need to enter your Wi-Fi password.
- Once successfully added, the device will appear in your app.
Video demonstrating app pairing and control.
5.3. RF Remote Control Setup (Optional)
The module supports 433MHz learning code RF remote controls. To pair a remote:
- In the Smart Life/Tuya Smart App, navigate to the device settings.
- Look for "RF remote control setup" or similar option.
- Follow the app's instructions to put the module into learning mode.
- Press the desired button on your 433MHz RF remote control within the specified time.
- The app will confirm successful pairing.
6. Obsluha zařízení
6.1. Ovládání aplikací
Once paired, you can control the 4 channels independently from the Smart Life/Tuya Smart App. The app provides real-time status updates for each channel.
- Dálkové ZAP/VYP: Tap the switch icons in the app to turn connected devices on or off from anywhere.
- Pracovní režimy: The module supports momentary, self-locking, and interlock modes. These can typically be configured within the device settings in the app.

Ovládejte svá zařízení odkudkoli pomocí aplikace.
6.2. Hlasové ovládání
The module is compatible with Amazon Alexa and Google Home/Assistant. After linking your Smart Life/Tuya Smart account to your voice assistant, you can use voice commands to control your devices.
- Example příkazy:
- „Alexo, rozsviť v kuchyni.“
- "Hey Google, turn off the garage door."

Convenient voice control with Alexa and Google Assistant.
6.3. Rádiové dálkové ovládání
If you have paired a 433MHz learning code RF remote control, you can use it to turn devices on/off within range.

Control devices using a 433MHz RF remote.
6.4. Časové funkce
The app allows you to set various timing schedules for automated control:
- Odpočítávání: Set a timer for a device to turn on/off after a specific duration.
- Single/Repeat Timing: Schedule devices to turn on/off at specific times, either once or repeatedly on selected days.
- Časovač smyčky: Automatizujte opakované cykly zapínání/vypínání.

Set up timing schedules for automated control.
6.5. Sdílení s rodinou
Share control of your smart devices with family members through the Smart Life/Tuya Smart App, allowing everyone to manage the smart home together.

Share control with your family.
6.6. Ruční ovládání
The module features physical buttons (K1, K2, K3, K4) for manual control of each channel, and a Reset button for factory reset or pairing mode.

Physical buttons for manual control and reset.
7. Údržba
- Udržujte zařízení čisté a bez prachu.
- Nepoužívejte drsné chemikálie ani abrazivní čisticí prostředky.
- Zajistěte dostatečné větrání kolem modulu, aby nedošlo k jeho přehřátí.
- Pravidelně kontrolujte těsnost a známky opotřebení kabelových spojů.
8. Řešení problémů
- Zařízení se nepřipojuje k Wi-Fi:
- Ujistěte se, že vaše Wi-Fi síť používá frekvenci 2.4 GHz. Sítě 5 GHz nejsou podporovány.
- Check if the Wi-Fi password is correct.
- Make sure your router is MAC-open.
- Bring the device closer to the Wi-Fi router during pairing.
- Perform a factory reset on the module (press and hold the Reset button) and try pairing again.
- RF remote control not working:
- Ensure the remote is a 433MHz learning code type. Clone codes and rolling code remotes are not compatible.
- Re-attempt the RF remote control setup process as described in section 5.3.
- Zkontrolujte baterii dálkového ovladače.
- Zařízení nereaguje:
- Zkontrolujte napájení modulu.
- Ověřte, zda jsou všechna kabelová připojení bezpečná.
- If controlling via app, ensure your phone has internet access and the app is updated.
- If controlling via voice, ensure your voice assistant is properly linked to your Smart Life/Tuya Smart account.
- Incorrect working mode:
- Adjust the working mode (momentary, self-locking, interlock) within the Smart Life/Tuya Smart App settings for the device.
9. Uživatelské tipy
- For optimal performance, place the module in an area with good Wi-Fi signal strength.
- Utilize the timing functions to automate daily routines, such as turning lights on/off or controlling irrigation systems.
- Experiment with different working modes (momentary, self-locking, interlock) to find the best fit for your specific application (e.g., momentary for garage doors, self-locking for lights).
- Consider using external buttons connected to the module's external button interface for convenient physical control in addition to app/voice/RF control.
- Regularly check the Smart Life/Tuya Smart App for firmware updates to ensure your module has the latest features and security enhancements.
10. Záruka a podpora
For technical support, warranty claims, or further assistance, please contact your retailer or the manufacturer directly. You may also find additional information and a digital version of this manual at the following link:





