User Manual

1. Overview

This product is a 4-channel universal WiFi wireless smart switch with an integrated RF 433MHz module. It is designed to enhance your smart home system by allowing you to remotely and automatically control home appliances and electronic devices via a smartphone application. The switch also supports indoor control using an RF remote controller. It can simultaneously connect and manage up to four appliances through the application, providing independent on/off control for each channel. Additionally, it features timing functions for scheduled operation, family sharing capabilities for collaborative smart home management, and voice control compatibility with platforms like Amazon Alexa, Google Home/Nest, and IFTTT, contributing to a more intelligent and convenient living experience.

2. Features

• App Support: Compatible with free iOS and Android mobile Tuya APP/Smart Life APP.
• Sync Status: Provides real-time device status updates to the application.
• Remote ON/OFF: Remotely turn 4 electrical devices on/off from any location.
• RF Remote Control: Allows for indoor on/off control via a 433MHz RF Remote.
• 3 Working Modes: Easily switch between interlock, self-locking, and inching modes.
• Independent Control: Each channel can be controlled separately within the Tuya APP/Smart Life APP.
• Broad Appliance Support: Remotely controls connected appliances such as lights, electric kettles, electric rice cookers, electric curtains, garage door openers, motors, etc.
• Timing Functions: Supports up to 8 enabled countdown, single, or repeat timing tasks for scheduled on/off operations.
• DIN Rail Mounted: Designed for easy installation in industrial control environments.
• Voice Control: Perfectly compatible with Amazon Alexa, Google Home, Google Nest, and IFTTT for hands-free operation.
• Share Control: Enables sharing control of your smart home devices with family members.

3. Specifications

The relay model has a life expectancy of more than 1,000,000 operations.

Image: Smart Switch model with AC 85-250V input voltage.

Image: Smart Switch model with DC/AC 7-32V input voltage.

4. Setup

4.1 Pre-installation Checklist

• Ensure your smartphone or tablet is connected to a 2.4GHz Wi-Fi network with internet access.
• Enable Bluetooth on your phone.
• Have the correct Wi-Fi password readily available.
• Your smartphone or tablet must have access to the APP store (iOS) or Google Play Store (Android).
• Your router should be MAC-open.

4.2 App Download and Registration

1. Download the "Tuya Smart" or "Smart Life" App by searching for it in your mobile app store or by scanning the QR code provided in the manual.
2. Register a new Tuya Smart account. If you already have an account, simply log in.

Image: QR code for Tuya Smart App download and detailed wiring diagram for the smart switch (AC 85-250V version shown).

4.3 Device Wiring

Refer to the wiring diagram below and on the device itself. Ensure all connections are secure and correctly matched to the input voltage of your specific switch model (DC/AC 7-32V or AC85-250V).

Image: Detailed wiring diagram for the 4-channel smart switch, showing connections for input power and four output channels (NC, COM, NO).

Important: The output provides a switching signal (dry contact) and no voltage. Ensure your load is powered independently.

4.4 Wi-Fi Pairing (Adding Device to App)

1. Power On: Connect the smart switch to power.
2. Reset Device: If the network indicator (red light) is already blinking fast (0.5S/time), you can skip this step. Otherwise, hold down the "Reset" button on the switch for 10 seconds until the network indicator (red light) blinks fast (0.5S/time).
3. Add Device in App:
   • Open the Tuya Smart/Smart Life App.
   • Click the "+" icon in the top right corner.
   • Select "Add Device" or "Auto Scan".
   • Wait a few seconds for the app to discover the device.
   • Once found, click "Next".
   • Select your 2.4GHz Wi-Fi network and enter its password.
   • Name your device (e.g., "Living Room Lights").
   • The device should now be successfully added and ready for control.

4.5 RF Remote Pairing

To pair an RF 433MHz remote control with the smart switch:

1. In the Tuya Smart/Smart Life App, navigate to the device's settings.
2. Look for "RF remote control setup" or a similar option.
3. Click "Add" to start the pairing process. The app will prompt you to press a button on the remote.
4. When prompted, long-press the desired button on your RF remote control. The app should confirm successful addition.
5. Assign the remote control buttons to the specific switches (channels) you wish to control.

Image: A 4-button 433MHz RF remote control, used for local control of the smart switch.

Image: The 433MHz RF remote control showing its battery compartment, indicating it requires a 23A 12V battery (not included).

5. Operating Instructions

5.1 App Control

Once the device is added to the Tuya Smart/Smart Life App, you can control your connected appliances from anywhere with an internet connection.

• Remote ON/OFF: Tap the ON/OFF buttons for each switch (channel) in the app to toggle the connected appliance.
• Real-time Status: The app displays the real-time status of each switch.
• Bluetooth Control: If the Wi-Fi network is disconnected, the switch will automatically switch to Bluetooth control, allowing local control via the app.

Image: A smartphone displaying the Tuya Smart Life App interface, illustrating remote control capabilities for smart devices.

5.2 RF Remote Control

After pairing the RF remote control, you can use its buttons to control the corresponding channels of the smart switch locally.

• Press the assigned button on the remote to toggle the state of the connected appliance.

5.3 Voice Control

The smart switch is compatible with popular voice assistants. Ensure your device is linked to your Amazon Alexa or Google Home account through the Tuya Smart/Smart Life App.

• Amazon Alexa: Say, "Alexa, turn on [Device Name]."
• Google Home: Say, "Hey Google, turn off [Device Name]."

Image: Illustration of voice control functionality with Amazon Alexa and Google Home devices, demonstrating how to issue commands to the smart switch.

5.4 Timing Functions

The app allows you to set schedules for your devices:

• Countdown: Set a timer for the device to turn on or off after a specified duration.
• Schedule (Single/Repeat): Program specific times for the device to turn on or off, either once or on a repeating schedule (e.g., daily, weekdays).
• Circulate/Random: Advanced timing options for more complex automation.

Image: Screenshot of the Smart Life App showing the interface for setting up timing functions, including schedules and countdowns.

5.5 Working Modes

The smart switch supports three working modes, configurable in the app:

• Self-locking Mode: Each channel operates independently. Pressing the button turns the device ON, pressing it again turns it OFF. This is the default mode for independent control of multiple devices.
• Inching Mode: The relay turns ON for a set duration (default 1 second, configurable from 2s to 3600s in the app) and then automatically turns OFF. Ideal for momentary actions like opening a garage door.
• Interlock Mode: Only one channel can be ON at a time. When one channel is turned ON, any previously ON channel will automatically turn OFF. This is useful for controlling devices where only one state should be active at a time.

Image: Illustration of the self-locking mode, showing how four devices can be controlled independently via a mobile phone, allowing separate on/off actions.

5.6 Family Sharing

You can share control of your smart switch with family members through the Tuya Smart/Smart Life App. This allows multiple users to manage the connected devices, enhancing convenience for the entire household.

Image: Screenshot of the Smart Life App demonstrating the family sharing feature, allowing multiple users to control smart devices.

6. Maintenance

• Keep the device clean and dry. Avoid exposure to moisture or extreme temperatures.
• Regularly check wiring connections for any signs of wear or looseness.
• Ensure your Wi-Fi network is stable and secure for optimal performance.
• Update the Tuya Smart/Smart Life App to the latest version for new features and bug fixes.
• If the device becomes unresponsive, try power cycling it (unplug and plug back in).

7. Troubleshooting

8. User Tips

• For optimal performance, place the smart switch within a reasonable range of your Wi-Fi router.
• Regularly check for and install updates for the Tuya Smart/Smart Life App to ensure you have the latest features and security enhancements.
• When setting up timing schedules, consider your daily routines to maximize energy efficiency and convenience.
• Utilize the "Family Sharing" feature to allow multiple household members to control the smart devices, enhancing convenience for everyone.
• If you experience connectivity issues, a quick power cycle of both the smart switch and your Wi-Fi router can often resolve the problem.

9. Warranty and Support

This product comes with a 1-year warranty from the date of purchase, covering manufacturing defects. For technical support or warranty claims, please contact your retailer or the manufacturer directly.

A detailed user manual in PDF format is available for download. You can access it via the following link: User Manual (PDF).

Manufacturer: ShenZhen Scimagic Development Technology Co., Ltd
Address: Gebu Building 1406, Songgang, Baoan Shenzhen, China