Expert4House – Smart Home Automation
Beca BHT-209-GCZB Battery-Powered Zigbee Smart Thermostat with Dry Contact for Boiler Heating Control
€34.89
€39.89
Save €5.00Tax included
Read the 3 reviews
Average rating:
5/5
Number of reviews: 3
- Clean contact for boiler: Smart thermostat with clean contact output, ideal for controlling gas boilers, wall-mounted boilers, and water heating systems.
- Zigbee Tuya Smart Home connection: Operates with Zigbee protocol via Tuya gateway and is managed through the Smart Life/Tuya app with voice command integration.
- Battery-powered 2×AA: No power wire needed: simpler and more flexible installation. Low battery notification directly on the display.
- Precise NTC3950 sensor: Stable and reliable measurement with accuracy up to ±0.5°C and adjustment range of 5–45°C to maintain set comfort.
- LCD display with temperature and humidity: Simultaneously displays ambient temperature and relative humidity for more comprehensive home comfort control.
- App control from anywhere: Adjust temperature, operating mode, and main settings directly from your smartphone, even when you are away from home.
- Touch controls and key lock: Capacitive buttons for intuitive use and the ability to lock keys to prevent accidental changes (useful in homes with children or public environments).
- Compact wall installation: Wall mounting with included plate and screws; slim design with reduced visible thickness (about 20.5 mm) for a clean result.
- Modern design and dual coloring: Available in white or black, designed to easily integrate with any style of decor.
- Data memory and durable materials: Retains data even without power, with PC+ABS casing and IP20 protection, suitable for domestic and professional use.
Secure payments: cards, PayPal, bank transfer, and installments
Delivery within 48 hours: Free shipping on orders over €150 across Europe
Easy 14-day returns: follow the steps to get your refund
Battery-Powered Smart Thermostat for Boilers - Tuya App and Always-On Comfort
Transform your heating into a smart, precise, and easy-to-manage system with the Beca BHT-209-GCZB Battery-Powered Zigbee Smart Thermostat . Designed to control boilers and heating systems via dry contact , it offers modern, hassle-free management: set the temperature in just a few taps, control everything from the app, and make your home more comfortable every day. Zigbee connectivity ensures stable, responsive communication within your smart home (a Zigbee hub/gateway is required for smart functions). From the app, you can manage the temperature and settings, share control with family, and create a truly convenient experience even when you're away from home. Plus, with smart integration, you can make control even faster via compatible voice assistants. For comfort, the thermostat uses a reliable sensor with a range of 5–45°C and accuracy of up to ±0.5°C to keep the temperature as close as possible to your desired temperature. The display clearly shows the temperature and humidity , while the touch controls make it immediate and elegant to use. To adapt to any environment, it offers advanced features such as temperature calibration , deadzone management, and adjustable minimum/maximum limits, so you can optimize comfort and consumption based on your habits. Powered by 2 AA batteries , installation is cleaner and more flexible, also ideal for quick replacements. The low battery warning helps you intervene promptly, avoiding interruptions. A set of features designed for safety and everyday use completes the package: a key lock to prevent accidental changes and antifreeze to protect the system during the coldest periods or while you're away. If you're looking for a reliable, modern, and home automation-ready thermostat, this is the right choice: simple control, stable comfort, and smart management in a single device.
App Control with Zigbee Hub
Set the Temperature with Alexa and Google Assistant
Make home comfort easier with voice control : you can ask Alexa or Google Assistant to raise or lower the temperature without touching a thing. A simple phrase like "Set the temperature to 26°C" is all it takes, and the thermostat executes the command in seconds. It's a super convenient feature when your hands are full, you're on the couch, or you want to adjust the heating while working or studying. In short, you have faster, stress-free control, allowing you to manage your home climate in a modern and truly user-friendly way.
Touch Panel with Modern Design and Clip-Fit Installation
Measurement Correction for Always Accurate Readings
With the temperature calibration feature, you can easily correct any differences between the thermostat's reading and the actual room temperature. You can set a temperature offset from the app, which is useful when there are small deviations due to the device's position, drafts, or cold/warm walls. This provides a more accurate reading and more precise heating control, improving comfort and the stability of the set temperature.
Battery Powered with Long Battery Life
The thermostat runs on two 3V AA batteries , ensuring simple installation without complex wiring. Thanks to its low-energy consumption system, it can last up to 720 days , ensuring continuous and reliable operation without the need for frequent maintenance. For even more convenient management, it features a low-battery reminder : when the power is running low, you'll receive an alert in the app and a dedicated notification, allowing you to replace the batteries in time and avoid unexpected shutdowns. The ideal solution for boilers, stoves, or systems where a direct power supply is unavailable or where you want to avoid electrical connections.
Shared Control from the App: Home Management and Family Permissions
From the app, you can manage the device easily and conveniently for the whole family. The sharing function allows you to grant access to other people in the house , so everyone can control and monitor whenever they need, with more flexible permissions . In the settings, you'll also find options such as device information , creating groups to organize multiple devices, checking the network connection , and the notifications section to receive useful alerts. You can also activate the disconnection alert , consult FAQs and support , and add a shortcut to the home screen for instant access.
Integrated Temperature and Humidity Sensor
Antifreeze function
Activate low temperature protection from the app to maintain a minimum threshold and reduce the risk of freezing pipes and systems when it's very cold or you're away from home.
Child Lock
Activate the child lock from the app to prevent accidental changes: the controls remain locked and the temperature is not changed accidentally by children or pets.
Universal Compatibility and Simplified Wiring with Clean Contact
This battery-powered thermostat is designed to easily connect to most dry contact boilers , ensuring precise control of heating on and off. The rear panel clearly displays the dedicated terminals and also allows indirect control of more powerful devices via external relays. Setup is intuitive and secure, ideal for standard domestic installations and modern heating systems requiring a simple and reliable interface.
Frequently Asked Questions
Yes. For app control and automation, you need a Tuya /Smart Life compatible Zigbee hub/gateway. Without a hub, you can only use it as a "local" (manual) thermostat on the device.
It's designed to control boilers and heating systems via a dry contact, so it's compatible with many boilers that accept an ON/OFF thermostat command. If you're unsure, check the boiler manual for the room thermostat terminals (dry contact).
It runs on 2 AA batteries. When the battery is low, a low battery warning appears to prompt you to replace it promptly.
It's a wall thermostat with a mounting plate. In general, you attach the plate, insert the batteries, connect the dry contact wires, and attach the front panel. For safety, we recommend installing the thermostat by qualified personnel with the power turned off.
Yes, through smart integration (app + Zigbee hub) you can use voice control to manage the temperature more quickly and conveniently.
Yes, the internal relay may make a slight clicking sound when opening or closing the contact: this is normal.
Standard deliveries to Italy generally take 24-48 hours from the time the package leaves the warehouse.
Orders confirmed by 3:30 PM on weekdays (Monday-Friday) are processed and shipped the same day.
Orders placed after 3:30 PM or on weekends or public holidays will be processed on the next working day.
Yes, we ship internationally to the European Union and several non-EU countries via couriers such as UPS Standard and DHL Express.
For the EU, with UPS Standard the average times are 2-3 working days .
With DHL Express, usually 1-2 business days .
Beca-BHT-209-GCZB-WHITE
Data sheet
- Power supply
- LR6 battery
- Colors
- Black
White - Material
- ABS+PC
- Working temperature
- From -0°C to 55°C
- Working humidity
- 5% - 95% non-condensing
- Voice Control
- Amazon Alexa and Google Home
- Mobile application
- Tuya Smart or Smart Life
- Dimensions
- 80x80x22 mm
- Communication Protocol
- Wired
Zigbee 3.0 - Precision
- +0.5°C
- Consumption
- -1.5W
- Storage temperature
- -5 ~ 45℃
- Wire terminals
- wire 2 x 1.5 mm² or 1 x 2.5 mm²
- Buttons
- Capactive touch buttons
- Clean contact
- Yup
- Protection Rating
- IP20
- sensor
- NTC3950 10K
- Timing error
- -1%
- Mounting
- 86×86 Box or Round Box
Wire Wall - Electric charge
- 3A for the valve 5A for the fan
- Temperature Display Range
- 5~99
- Plant typology
- Boiler with radiators
- Works with
- Amazon Alexa
Google Home
Home Assistant
Tuya / Smart Life - Hub required
- Tuya Zigbee gateway
- Ideal for
- Heating & climate
- Home Assistant integration
- Cloud integration
Zigbee via dongle (ZHA / Zigbee2MQTT)
Specific References
- UPC
- 627717941393
- EAN13
- 6277179413939
- MPN
- Beca BHT-209-GCZB WHITE
Buen termostato!
02/28/2026
HVAC s.
Mide temperatura y humedad, y cambio frío calor, alimentado a pilas, contacto seco para activar caldera o cerrar circuitos max 3A o 5A. Respecto la integración en Tuya app la humedad por ahora no se refleja es el único pero...
01/28/2026
Piero R.
Great product
01/25/2026
Thano
It does what it's supposed to do the max hysteresis is 0.5 and it's pretty accurate. App UI could be better and I couldn't connect it to Google home
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- Clean contact for boiler: Smart thermostat with clean contact output, ideal for controlling gas boilers, wall-mounted boilers, and water heating systems.
- Zigbee Tuya Smart Home connection: Operates with Zigbee protocol via Tuya gateway and is managed through the Smart Life/Tuya app with voice command integration.
- Battery-powered 2×AA: No power wire needed: simpler and more flexible installation. Low battery notification directly on the display.
- Precise NTC3950 sensor: Stable and reliable measurement with accuracy up to ±0.5°C and adjustment range of 5–45°C to maintain set comfort.
- LCD display with temperature and humidity: Simultaneously displays ambient temperature and relative humidity for more comprehensive home comfort control.
- App control from anywhere: Adjust temperature, operating mode, and main settings directly from your smartphone, even when you are away from home.
- Touch controls and key lock: Capacitive buttons for intuitive use and the ability to lock keys to prevent accidental changes (useful in homes with children or public environments).
- Compact wall installation: Wall mounting with included plate and screws; slim design with reduced visible thickness (about 20.5 mm) for a clean result.
- Modern design and dual coloring: Available in white or black, designed to easily integrate with any style of decor.
- Data memory and durable materials: Retains data even without power, with PC+ABS casing and IP20 protection, suitable for domestic and professional use.
Beca BHT-209-GCZB Battery-Powered Zigbee Smart Thermostat with Dry Contact for Boiler Heating Control
€34.89
€39.89
Save €5.00Tax included
Read the 3 reviews
Average rating:
5/5
Number of reviews: 3