1. Introduction
The Tuya ZigBee 3.0 Smart Radiator Valve (TRV ME168) is a programmable thermostatic radiator valve designed to provide intelligent control over your home heating system. It integrates with ZigBee 3.0 networks, allowing for remote control via the Smart Life/Tuya Smart app and voice commands through popular smart assistants like Amazon Alexa and Google Home. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and energy efficiency.

2. Safety Information
Please read and understand all safety instructions before installing and operating this device. Failure to follow these instructions may result in property damage, injury, or death.
- Do not expose the device to extreme temperatures, humidity, or direct sunlight.
- Ensure the device is installed by a qualified person if you are unsure about the process.
- Keep batteries out of reach of children.
- Do not attempt to disassemble or repair the device yourself.
- Use only the specified battery type (2*AA Alkaline Battery).
3. Package Contents
Verify that all components are present in your package:
- Tuya ZigBee 3.0 Smart Radiator Valve (TRV ME168)
- Adapters (e.g., Danfoss RA, RAV, RAV L, Giacomini, M28*1.5, Caleffi)
- User Manual (this document)

4. Product Overview
The TRV ME168 is designed for efficient and smart heating control. Its compact body houses advanced features for a comfortable and energy-saving environment.
4.1. Key Features
- Easy Installation: Simple screw-on design with various adapters.
- Multiple Operating Modes: Boost, Comfortable, Vacation, Automatic, Manual, Energy-saving.
- App Remote Control: Manage settings from anywhere using the Smart Life/Tuya Smart app.
- Voice Control: Compatible with Amazon Alexa, Google Home, and Yandex Alice.
- Programmable Weekly Schedule: Customize heating schedules for 7 days a week, with 6 time periods per day.
- Open Window Detection: Automatically stops heating when a sudden temperature drop is detected.
- History Query: View past temperature records and switching times.
- Family Sharing Function: Share control of the device with family members.
- Child Lock Function: Prevents accidental changes to settings.
4.2. Components and Display

- Programmable Mode Indicator: Shows if a schedule is active.
- WiFi Mode Indicator: Indicates network connectivity.
- Display Set Temperature: Shows the current target temperature.
- Heating State Indicator: Shows if the valve is actively heating.
- Low Battery Warning: Alerts when batteries need replacement.
- Adjustable Knob: For manual temperature adjustments.
5. Setup
5.1. Battery Installation
The TRV is powered by 2 AA alkaline batteries.
- Press and hold the battery sheet.
- Push out the battery compartment.
- Insert 2 AA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery cover.

5.2. Physical Installation on Radiator
The TRV is designed for easy installation on most radiator valves.
- Unscrew the existing thermostatic head from your radiator valve.
- Select the appropriate adapter for your valve type (e.g., Danfoss RA, RAV, RAV L, Giacomini, M28*1.5, Caleffi).
- Place the chosen adapter onto the radiator valve.
- Tighten the adapter securely.
- Rotate the TRV body onto the adapter until it is firmly attached.
5.3. Network Connection (ZigBee Gateway Required)
The TRV ME168 requires a Tuya ZigBee gateway to connect to your WiFi network and enable smart features.
- Ensure your Tuya ZigBee Gateway is powered on and connected to your home WiFi network.
- Open the Smart Life/Tuya Smart app on your smartphone.
- Add the TRV device through the app, following the on-screen instructions for ZigBee device pairing.
- Once paired, the WiFi mode indicator on the TRV display will confirm connectivity.

6. Operating Instructions
6.1. Manual Temperature Adjustment
Rotate the adjustable knob on the TRV to manually set your desired temperature. The new set temperature will be displayed.
6.2. App Remote Control
Download the 'Smart Life' or 'Tuya Smart' app from your smartphone's app store. Once the TRV is paired with your ZigBee gateway, you can control it from anywhere.

6.3. Voice Control
The TRV is compatible with Amazon Alexa, Google Home, and Yandex Alice. After linking your Smart Life/Tuya Smart account to your voice assistant, you can use simple commands to control your heating.
Example commands:
- "Alexa, set the bedroom temperature to 22 degrees."
- "Hey Google, turn on the living room heating."

6.4. Programmable Weekly Schedule
Set up a personalized heating schedule for each day of the week, with up to 6 time periods per day, to optimize comfort and energy savings. This feature is configured via the Smart Life/Tuya Smart app.
6.5. Open Window Detection
This feature helps save energy by automatically stopping heating when a sudden drop in room temperature is detected, indicating an open window or door.
- Activation: Room temperature drops by 6°C or more within 4 minutes. The valve will close.
- Release: Room temperature rises by 3°C, or after 48 minutes, or manually via the app/device.

6.6. Child Lock Function
Activate the child lock via the app to prevent unauthorized or accidental changes to the TRV settings, ensuring your home remains in a smart and safe status.
6.7. Family Sharing Function
Share control of your smart radiator valve with other family members through the Smart Life/Tuya Smart app, allowing everyone to manage the home's heating.

6.8. History Query
Access the Smart Life/Tuya Smart app to view historical temperature data and valve switching times, helping you track and understand your heating patterns.

7. Maintenance
7.1. Battery Replacement
When the low battery warning appears on the display, replace the 2 AA alkaline batteries promptly to ensure continuous operation. Follow the battery installation steps in Section 5.1.
7.2. Cleaning
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the surface or internal components.
8. Troubleshooting
- Device not connecting to app: Ensure your ZigBee gateway is online and within range. Check if the TRV is in pairing mode.
- Inaccurate temperature readings: Ensure the TRV is not obstructed or exposed to direct heat sources that could affect its sensor.
- Valve not opening/closing: Check battery levels. Ensure the valve is properly installed and not stuck.
- Voice control not working: Verify that your Smart Life/Tuya Smart account is correctly linked to your voice assistant (Alexa/Google Home) and that the device is named appropriately.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | TRV ME168 |
| Material | Anti-flammable PC+ABS+Metal |
| Frequency | 2.4GHz |
| Battery | 2*AA Alkaline Battery (LR6) |
| Battery Life | Approx. Half a Year |
| Temperature Range | 5℃-60℃ |
| Temperature Display Range | 0℃-60℃ |
| Constant Temperature Tolerance | ±1℃ |
| Temperature Sensor | NTC |
| Wireless Protocol | Zigbee 3.0 |
| Connection | M30x1.5mm |
| MAX Travel | 6mm |
| Working Temperature | -10℃- 40℃ |
| Working Environment | Indoor |
| Anti-Froze Function | Yes |
| Programmable | Yes |
| APP | Smart Life/Tuya Smart |
| Voice Control | Yandex Alice/Amazon Alexa/Google Home |
| Certification | RoHS, CE |
| Product Size (L x φ) | 74mm x 55mm |

10. User Tips
- Optimize Schedules: Take advantage of the programmable weekly schedule to pre-heat rooms before you arrive home or wake up, and lower temperatures when rooms are unoccupied.
- Zone Control: If you have multiple TRVs, create different heating zones in your app for personalized comfort in each room.
- Gateway Placement: Ensure your ZigBee gateway is centrally located to provide reliable connectivity to all your TRVs.
- Energy Saving: Utilize the 'Open Window Detection' and 'Energy-saving mode' to minimize wasted heat.
11. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.





