1. Introduction
Thank you for choosing the BEOK TGM50-WPB-R Smart Thermostat. We have adopted advanced technology and perfect craftsmanship to provide you with a suitable temperature environment every day. This manual will guide you through the installation, operation, and maintenance of your new thermostat.

Figure 1: BEOK Smart Thermostat Overview
Video 1: BEOK Smart Thermostat Product Demonstration
2. Main Functions and Characteristics
- WIFI connectivity for Android & Apple iOS devices
- Full-screen display with touchscreen interface
- Power-off memory function retains settings
- Real-time data save function
- Programmable schedule: 5+2, 6+1, or 7-day options with six periods per day
- Anti-freezing function to protect pipes
- Three sensor modes available for configuration
- Child lock function for safety
3. Product Packaging
| Item | TGM50-EP | TGM50-WP | TGM50-WPB |
|---|---|---|---|
| Thermostat | ✓ | ✓ | ✓ |
| User Manual | ✓ | ✓ | ✓ |
| Screws *2 | ✓ | ✓ | ✓ |
| External sensor | ✓ |
4. Specifications
4.1. Model Specifics
| Model | Current Loading | Week Program | Controlled Objects |
|---|---|---|---|
| TGM50-EP | 16A | ✓ | For electric heating appliances |
| TGM50-WP | 3A | ✓ | For water heating appliances |
| TGM50-WPB | 3A | ✓ | For boilers connected via dry contact |
4.2. Technical Parameters
| Parameter | Value |
|---|---|
| Power Supply | AC 100-240V, 50/60Hz |
| Current Load | ≤3A (water heating/gas boiler), ≤16A (electric heating) |
| Power Consumption | <1W |
| External Material | PC+ABS (flame retardant) |
| Sensing Element | NTC |
| Set Temp. Range | 5-95°C |
| Temperature Hysteresis | ±1°C (Defaults adjustable 0.5-10°C) |
| Dimension | 86x86x12.5mm |
| Ambient Temp. | 0-45°C, 5-95%RH (Non-condensing) |
| Storage Temp. | -5~55°C |
| Timing Error | <1% |
| Display Type | DIGITAL |
| Display Size | 2.0 - 3.9 Inches |
| Is Smart Device | Yes |
| Certification | CE |
| APP Compatibility | Tuya Smart Life |
| Voice Assistant | Alexa, Google Home, Alice |
5. Setup
5.1. User Notes
- Please read this manual carefully. Improper operation may damage the product or cause dangerous conditions.
- The installation personnel must be well-trained and experienced service technicians.
- After installation, please read this manual carefully and operate the product according to the instructions.
Caution: Risk of electric shock
5.2. Wiring Diagram
The product may come with old or new wiring (randomly selected). Please refer to the diagram below for correct connections based on your thermostat's version.

Figure 2: TGM50-WPB Wiring Diagram (Old and New Versions)
For TGM50-WPB (Boilers connected via dry contact):
- Old Wiring: L (Live), N (Neutral) for power. Terminals 5 and 6 are for Dry Contact to the Boiler.
- New Wiring: L (Live), N (Neutral) for power. COM (Common), NC (Normally Closed), NO (Normally Open) for dry contact. Terminals 5 and 6 are for NTC sensor.
5.3. Installation Instruction
This product is suitable for standard 86*86mm wall box and 60mm European round box.
- Connect the power box: Connect the power box according to the wiring diagram provided above.
- Separate power supply: Separate the power supply from the control board cable.
- Screw into wall box: Screw the power supply into the 86mm wall box.
- Connect power board: Connect the power board to the board line, and align the buckle at 30 degrees to complete the installation.
6. Operating Instructions
6.1. Description of Display & Icons
Familiarize yourself with the thermostat's display and icons:
- WIFI icon: Indicates Wi-Fi connection status.
- Auto mode: Thermostat operates according to programmed schedule.
- Manual mode: Temperature is set manually.
- Room temperature / Setting temperature: Displays current room temperature or target set temperature.
- Open window detection: Icon appears when open window mode is active.
- Leave mode: Thermostat set to a lower temperature for when you are away.
- Locking icon: Indicates child lock is active.
- Heating icon: Indicates heating is currently active.
- Button icons: Power, Mode, Down, Up.
6.2. Basic Operation
- Power on/off: Press the ⏻ button to turn the thermostat on or off.
- Set Temperature: Press the ∧ or ∨ buttons to adjust the desired temperature.
- Switch Modes: Press the M key to switch between Manual mode and Leave mode.
- Manual mode: Non-programmable mode. The hand icon will be displayed.
- Leave mode: Sets temperature to 16°C. The suitcase icon will be displayed.
To change to programmed mode, use the Tuya Smart or Smart Life APP.
- Set the Child Lock: Simultaneously press and hold the ∧ and ∨ buttons for 5 seconds to activate or deactivate the child lock.
- Wi-Fi Link: In power-on state, press and hold the ∧ key for 5-8 seconds. The Wi-Fi icon will flash, indicating the thermostat is in Wi-Fi configuration state.
6.3. Daily Programming
The thermostat supports daily programming with 6 customizable time and temperature periods per day. This allows automatic adjustment of room temperature to align with your daily schedule.

Figure 3: Daily Programming Interface
Time Programming Instructions: Please set up via Tuya Smart or Smart Life app.
| Day Type | Period | Defaulted Time | Defaulted Temp. |
|---|---|---|---|
| Working day | 1 | 6:00 | 20°C |
| 2 | 8:00 | 16°C | |
| 3 | 11:30 | 16°C | |
| 4 | 12:30 | 16°C | |
| 5 | 17:00 | 22°C | |
| 6 | 22:00 | 16°C | |
| Rest day | 1 | 8:00 | 22°C |
| 2 | 23:00 | 16°C |
Remark:
- The defaulted temperature of period 3 and period 4 is the same as period 2. Please change it according to your requirements.
- Do not set the last time point in the day beyond 23:59.
6.4. Advanced Option Setting
In the power-off state, press the M key and the ∨ key simultaneously for 5 seconds to enter the advanced option setting. Press M to navigate to the next option, use ∧ and ∨ to adjust, and press ⏻ to save and exit.
| Display Code | Function | Setting And Options | Factory Defaults |
|---|---|---|---|
| 01 | Temperature calibration | -9.9-9.9°C | -2°C |
| 02 | Sensor selection | IN: Use internal sensor OUT: Use external sensor ALL: Use both internal and external sensors | IN |
| 03 | Limit temperature value modification | 35-60°C | 60°C |
| 04 | Temperature hysteresis | 0.5-10°C | 1°C |
| 05 | Antifreeze function | OFF: Close anti-frozen ON: Open anti-frozen | OFF |
| 06 | Weekly programming mode setting | 7: 7 working days 6: 6 working day+1 rest day 5: 5 working day+2 rest day OFF: Turn off programming | 5 |
| 07 | Main and auxiliary reverse selection (optional) | 00: Close main and auxiliary reversal function 01: Indicate auxiliary reversal ATT: Not recommended to adjust without professional guidance | 00 |
| 08 | Standby backlight brightness | 00: Turn off backlight 01: Low brightness 02: Medium brightness 03: High brightness | 03 |
| 09 | Set temperature upper limit | 15-95°C | 60°C |
| 10 | Sound | ON: Turn on sound OFF: Turn off sound | ON |
| 11 | Window opening detection | ON: Turn on function OFF: Turn off function | ON |
| 12 | Power outage memory function | 0: Thermostat switch status same as before power failure 1: Thermostat opens after power restoration 2: Thermostat closed after power restoration | 0 |
| 13 | Reset | Long press ∧ button. After drop sound, press ⏻ button to exit. Thermostat completes reset. |
6.5. Notes on Advanced Options
- 02 Sensor selection: If no external sensor is connected, do not set it to OUT or ALL, otherwise 'Er' will appear on the screen, and the thermostat will stop heating until the problem is solved. If there is an error with the sensor, 'Er' will also appear.
- 05 Antifreeze function: If the antifreeze function is turned on, when you turn off the thermostat, the room temperature and ⏻ key will still be displayed.
- 11 Window opening detection: When turned on, if the room temperature drops by 6°C within 4 minutes, the open-window mode will activate to turn off heating. The open-window icon will be displayed. This mode exits if: the temperature rises 3°C, after 48 minutes, or manually.

Figure 4: Open-window Detection in Action
6.6. Phone Port Operation (App Setup)
The thermostat can be controlled remotely via the Tuya Smart or Smart Life app.
- Download APP:
For iOS: Log in to the App Store, search for "Tuya Smart", and download it.
For Android: Log in to Google Play, search for "Tuya Smart", and download it.
Alternatively, scan the QR code below to download the app:
- Register Account: If you don't have an account, register via SMS verification code. Click "Create a new account", agree to the Privacy Policy, and follow the prompts to enter your mobile number/email, get a verification code, set a password, and register.
- Wi-Fi Connection:
a. Turn on your mobile phone's Bluetooth and Wi-Fi (ensure it's connected to a 2.4Ghz Wi-Fi network).
b. Activate thermostat Wi-Fi module: Turn on the thermostat, press and hold the ∧ button for 5 seconds. The Wi-Fi icon will flash.
c. Add Device (Method 1 - Auto-discovery): Enter the Tuya APP. If "Device to be added" pops up, click "Add".
d. Add Device (Method 2 - Manual Search): Click "Add Device" or "+" in the app, then search for nearby devices. Select your thermostat when found.
e. Add Device (Method 3 - Category Search): Click "+", find "Small Home Appliances", then select the temperature control product (Bluetooth + WIFI model). Tap Next.
f. Follow on-screen prompts: Ignore content, click Next. Confirm the indicator is blinking, click Next. - Enter Wi-Fi Information: Enter your 2.4Ghz Wi-Fi network name and password (only numbers and letters, no special symbols). Follow prompts. The device will be added successfully.
- Display of Temperature Controller APP Interface: Once connected, you can control and monitor your thermostat from the app.

Figure 5: App Control Interface

Figure 6: Voice Control with Google Assistant
7. Maintenance
- Clean the thermostat regularly with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the thermostat to direct sunlight, extreme temperatures, or high humidity.
- Ensure no liquids come into contact with the device.
8. Troubleshooting
- 'Er' Error Message: This indicates a sensor error. Check sensor connections. If an external sensor is not used, ensure sensor selection (option 02 in advanced settings) is set to 'IN' (internal sensor).
- Wi-Fi Connection Issues: Ensure your router is broadcasting a 2.4Ghz signal. Verify Wi-Fi password and network name are correct (no special characters). Try resetting the thermostat's Wi-Fi module and your router.
- Thermostat Not Responding: Check power supply. If the screen is blank, ensure it's properly connected to 220V.
- Inaccurate Temperature Readings: Use the temperature calibration option (01 in advanced settings) to adjust the displayed temperature if it consistently differs from an accurate thermometer.
9. User Tips
- Hysteresis Setting: While the app might default to 1°C hysteresis, some versions of the thermostat allow setting 0.5°C directly on the device itself via advanced settings (option 04). Experiment to find what works best for your heating system.
- Power-Off Memory: To ensure all settings are retained after a power outage, check advanced option 12 (Power outage memory function) and set it to '0' for status retention.
- Boiler Compatibility: This thermostat is generally compatible with gas boilers that use a dry contact (relay) for external control. Always consult your boiler's manual for specific wiring requirements.
- Child Lock: Utilize the child lock feature (Figure 7) to prevent unintended changes to settings, especially in households with children.

Figure 7: Child Lock Function
10. Warranty and Support
For any issues, questions, or support needs, please refer to the official user manual PDF available at BEOK TGM50 User Manual (PDF) or contact your seller directly. Please provide your product model and purchase details for efficient assistance.