1. Introduction
The Scimagic-RC WiFi Smart Temperature Switch is a versatile device designed to remotely and automatically control appliances based on environmental temperature. Integrated with the eWeLink APP, it allows for intelligent monitoring and control, supporting voice commands via Amazon Alexa and Google Home, as well as 433MHz RF remote control. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and safety.
Figure 1: Scimagic-RC Smart Switch with connected temperature sensor.
2. Package Contents
Please check the package for the following items:
- 1 x Scimagic-RC WiFi Smart Temperature Switch
- 1 x DS18B20 Waterproof Temperature Sensor
- 1 x User Manual (this document)
Figure 2: Contents of the product package.
3. Specifications
| Feature | Specification |
|---|---|
| Input Voltage (Model TH1CH-B1RF) | DC/AC 7-32V, Micro USB 5V |
| Input Voltage (Model TH1CH-D1RF) | AC 85-250V, Micro USB 5V |
| Output | Signal output only (no voltage output) |
| Max. Current | 10A |
| Wireless Standard | 2.4GHz, 802.11 b/g/n |
| Security Mechanism | WPA-PSK/WPA2-PSK |
| Control Mode | Mobile APP EWeLink |
| Platform Support | Android, iOS |
| Gang | 1 |
| Supported Sensor | DS18B20 Temperature Sensor (humidity sensor not supported) |
| Enclosure Material | Fire-retardant ABS V0 |
| Operating Humidity | 5%-90%RH, Non-condensing |
| Operating Temperature (Switch) | 0ºC-40ºC |
| Radio Frequency | 433MHz (for RF control) |
| Switch Dimensions | 72 x 45 x 29 mm |
| Sensor Type | Waterproof temperature sensor |
| Sensor Probe | Stainless steel temperature probe |
| Sensor Temperature Range | -55℃~+125℃ |
| Sensor Operating Voltage | 3.0-5.5V |
| Sensor Length | 1m |
Figure 3: Dimensions of the Smart Switch and Temperature Probe.
Figure 4: Waterproof temperature sensor.
4. Safety Information
- Always disconnect power before installing or servicing the device.
- Ensure all wiring is done by a qualified electrician and complies with local electrical codes.
- Do not exceed the maximum current rating of 10A.
- Keep the device away from water and extreme temperatures (outside 0ºC-40ºC for the switch). The sensor is waterproof, but the main switch unit is not.
- Do not attempt to disassemble or repair the device yourself. Contact support if issues arise.
- Ensure your Wi-Fi network is secure (WPA-PSK/WPA2-PSK).
5. Setup Guide
5.1. App Installation
- Download the eWeLink App from the App Store (iOS) or Google Play Store (Android).
- Register a new account or log in with an existing one.
Figure 5: eWeLink App interface.
5.2. Wiring the Smart Switch
Before wiring, ensure the power supply is disconnected. The switch has different input voltage models (DC/AC 7-32V or AC 85-250V). Please refer to the specific wiring diagram for your model.
General Wiring Diagram (AC 85-250V Input)
Figure 6: Internal wiring for AC 85-250V input. Connect AC 85-250V to the input terminals. The relay output supports AC 90V-250V/10A or DC 0-30V/10A. Connect your appliance to the NO (Normally Open) and COM (Common) terminals for standard operation, or NC (Normally Closed) and COM if normally closed operation is desired.
External View of Terminals
Figure 7: Front view of the Smart Switch showing input and output terminals.
Connecting the Temperature Sensor
Plug the DS18B20 temperature sensor into the dedicated sensor socket on the smart switch. The sensor is waterproof and can be placed in environments where temperature monitoring is required.
Figure 8: The DS18B20 temperature probe.
5.3. Device Pairing (eWeLink App)
Follow these steps to pair your smart switch with the eWeLink App:
- Power on the smart switch.
- Open the eWeLink App and tap the '+' icon to add a device.
- Select the appropriate pairing mode (usually 'Quick Pairing' or 'Compatible Pairing Mode').
- For Compatible Pairing Mode, the device's hotspot will appear in your Wi-Fi settings. Connect your phone to this hotspot (e.g., 'ITEAD-xxxxxx') using the password '12345678'.
- Return to the eWeLink App to complete the connection.
- Once successfully added, you can rename the device and assign it to a room.
Video 1: Demonstration of device pairing and temperature control setup in the eWeLink App.
6. Operating Instructions
6.1. App Control
The eWeLink App provides comprehensive control over your smart switch:
- Remote ON/OFF: Turn connected electrical devices on or off from anywhere.
- Real-time Monitoring: View the current temperature detected by the DS18B20 sensor in real-time.
- Temperature Control Mode: Set specific temperature ranges to automatically turn devices on or off. For example, you can set the switch to turn on when the temperature drops below 30°C and turn off when it exceeds 40°C (as shown in the video demonstration).
- Timing Functions: Schedule devices to turn on/off at specific times using countdown, single, repeat, or loop timers.
- Smart Scenes: Use temperature values as triggers for smart scenes to control other eWeLink compatible devices.
- Device Sharing: Share control of the smart switch with family members through the app.
Figure 9: Temperature control interface in the eWeLink App.
Figure 10: Timing and scheduling options in the eWeLink App.
Figure 11: Device sharing feature in the eWeLink App.
6.2. Voice Control
The smart switch is compatible with Amazon Alexa and Google Home/Google Nest. Once integrated, you can use voice commands to control your connected appliances.
- Example Commands:
- "Alexa, turn on [device name]."
- "Hey Google, turn off [device name]."
- "Alexa, what is the temperature of [device name]?"
Figure 12: Voice control integration with smart assistants.
6.3. RF Remote Control
The smart switch supports 433MHz RF remote control for convenient operation indoors. Please note that only 433MHz learning code remotes are supported; clone codes and rolling code remotes are not compatible. The RF remote control is not included with the smart switch.
Figure 13: RF remote control functionality.
7. User Tips
- Versatile Applications: This smart switch is suitable for a wide range of applications including controlling warmers, fish tanks, dehumidifiers, table lamps, incubators (hatch), storage climate, greenhouses, automatic watering systems, and electric fans.
- Stable Wi-Fi: Ensure your 2.4GHz Wi-Fi network is stable and has a strong signal for reliable device operation.
- Router Settings: Your router should have MAC-open settings for successful device connection.
- App Access: Your smartphone or tablet must have access to the App Store or Google Play to download the eWeLink App.
- RF Remote: If using an RF remote, ensure it is a 433MHz learning code type.
Figure 14: Examples of diverse applications for the smart switch.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device fails to pair with App | Incorrect Wi-Fi password, 5GHz Wi-Fi, weak signal, router MAC filtering. | Ensure correct 2.4GHz Wi-Fi password. Check Wi-Fi signal strength. Disable MAC filtering on your router. Try 'Compatible Pairing Mode'. |
| Device offline in App | Loss of Wi-Fi connection, power outage. | Check your Wi-Fi router and internet connection. Ensure the device has stable power. Re-pair if necessary. |
| Temperature reading is inaccurate | Sensor not properly connected, sensor damaged, external interference. | Ensure the sensor is securely plugged in. Check the sensor for visible damage. Avoid placing the sensor near heat sources or drafts that could affect readings. |
| RF remote not working | Incorrect remote type, remote not paired. | Ensure your remote is a 433MHz learning code type. Follow the remote's instructions to pair it with the smart switch. |
| Appliance not turning on/off | Incorrect wiring, appliance fault, relay issue. | Verify wiring according to the diagrams in Section 5.2. Test the appliance directly. Check the relay status in the App. |
9. Maintenance
- Cleaning: Wipe the smart switch with a dry, soft cloth. Do not use harsh chemicals or abrasive cleaners.
- Sensor Care: The temperature sensor is waterproof, but avoid unnecessary physical stress or bending of the cable.
- Firmware Updates: Periodically check the eWeLink App for available firmware updates for your device to ensure optimal performance and security.
10. Warranty and Support
For technical support, troubleshooting assistance, or warranty inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
