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[Pre-Order] SONOFF Thermostat Core Zigbee Smart Thermostat | TP-WGZBA
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【Dual Outputs, Wider Compatibility】Featuring a powered output supporting loads up to 3A and a potential-free dry-contact output, it works with hydronic heating systems and boilers, offering flexible control for different home heating setups.
【Three Flexible Heating Schedules】Features 3 independent temperature-control plans, each supporting a full week of scheduling with up to 12 time periods per day. Easily switch between weekday, weekend, holiday, or family routines without repeated setup.
【Minimalist Design, Smart Interaction】A clean, rounded white design fits various interior styles, while the smooth physical dial offers intuitive temperature control. Built-in human presence sensing wakes the display as you approach, turns it off when you leave, and lets you adjust screen brightness.
【More Accurate Room Temperature】Connect a remote temperature sensor on the same gateway to measure actual room temperature, reducing the impact of self-heating or in-wall installation on temperature readings.
【Smart Window-Open Detection】Automatic window-open detection and door sensor integration identify ventilation in real time. When a window is opened, heating pauses automatically to prevent wasted energy.
Pre-Order Notice: This product is available for pre-order from September 4 to September 28. Enjoy 10% OFF during the pre-order period.
Estimated Shipping: For customers in the UK and EU, orders are expected to ship from September 30.
Order Notice: For customers in the UK and EU, if you purchase this item together with in-stock items in the same order, shipment of the in-stock items may be delayed until the pre-order item is ready to ship. We recommend placing pre-order items separately.
Technical details, troubleshooting or setup tips? Access the TP-WGZBA knowledge center for all the info you need.
Precision Heating.
Whole Home Comfort.
Zigbee Smart Thermostat — Thermostat Core | TP-WGZBA
Wide Range of Applications
Use it to turn on and off compatible devices that have a mechanical power switch.
Dual Output Design for Underfloor Heating
Actuators and Boiler
Active output drives underfloor heating actuators (max. 3A). Passive dry contact output works for boilers. Multiple control modes allow flexible installation and accurate heating regulation.
Tired of Wasteful Heating?Thermostat Core Cuts Your Heating Bills.
Window Open Detection
Temp drop → Auto‑stop heating
Stop Unnecessary Boiler Firing
Target temp reached → Boiler shuts off
Occupancy‑Adaptive Motion Heating
Heat when occupied, Off when empty
3 Switchable Custom Schedules , 12 Daily Temperature Segments
Comes with 3 customizable and switchable weekly heating plans, supporting up to 12 temperature segments per day. The panel automatically adjusts room temperature according to your plan while balancing comfort and energy efficiency.
Deliver More Accurate Real‑Room Temperature
Self‑heating of the unit and mounting position may cause measurement deviations. Two solutions help deliver more accurate real‑room temperature for improved heating control.
Remote Temperature Source
Link temperature sensors to control by
real room temperature
Temperature Offset
Manually adjust values to compensate for
actual room temperature deviation
- Supported devices for temperatrue: SNZB-02, SNZB-02P, SNZB-02D, SNZB-02WD, SNZB-02LD, SNZB-02B, SNZB-02M.
- The remote device must be connected to the same SONOFF Zigbee gateway
Dual Open-Window Detection for
Smarter Energy Saving
Supports linkage with SONOFF door/window sensor and automatic window opening detection. When a window is opened, the anti-freeze mode will be activated automatically to prevent energy waste caused by continuous heating.
- Supported door/window sensor devices: SNZB-04, SNZB-04P, SNZB-04PR2 .
- Door/window sensor used for window-opening detection must be connected to the same SONOFF Zigbee gateway.
Approach to Wake, Leave to Sleep
You can check three core datasets at any time: target temperature, actual temperature, and heating activity. It is stored for up to 6 months, making it easy to track heating trends and analyze energy usage.
Multi-Layer Safety Protection, Use with Peace of Mind
Child Lock
Anti-Freeze Mode
External NTC, Overheat Protection
(10KΩ NTC, B Value 3950K)
Works with Apple Home Via Matter Bridge
All solutions integrate SONOFF Zigbee devices into your Apple ecosystem via Matter Bridge, enabling seamless interconnected device control.
Learn More about Bridge-M | Learn More about eWeLink CUBE
Easily Integrates with Open-Source Platforms
Built on the Zigbee 3.0 standard, this device effortlessly connects with a wide range of third-party platforms.
Zigbee Ecosystem Compatibility
A pull request #5201dds native ZHA support for SONOFF TP-WGZBA (Thermostat Core), but is .not yet merged. Some features won't work out of the box. or full functionality now, manually configure with the script from SONOFF Help Center – TP-WGZBA Setup Note. Also applies to SmartThings.
Via ZHA
The current device requires Zigbee2MQTT version 2.14.0 or higher. If not updated to this version or above, the device may fail to connect properly or may lack full functionality.
Wiring Instructions
Compatible Mounting Box Sizes
Specifications
Specs & User Manual
The TP-WGZBA is a Zigbee smart thermostat panel designed to make home heating smarter, more flexible, and more comfortable. It supports both powered and dry-contact control for wider compatibility with different heating systems. With flexible heating schedules, intuitive dial control, smart motion sensing, and accurate temperature monitoring, it provides convenient control for everyday heating. Smart window-open detection also helps reduce unnecessary energy use for a more efficient home.
User Manual (PDF)Zigbee Smart Thermostat
TP-WGZBA
Zigbee 3.0
IEEE 802.15.4
Water Heating System
Flush Wall Mount
Max. 3A 100-240V~ 50/60Hz
Active Relay Output
3A
Resistive Load
Passive Dry Contact Output
COM, NO
5~30℃
Low: approx. 0.3 m; Medium: approx. 0.6 m; High: approx. 1 m
10KΩ NTC, B Value 3950K
86×86×45.5mm
0°C to 50°C
≤90% RH, non-condensing
155 g
31.5 mm
60 mm
PC
White
4KV
24AWG-12AWG (0.2mm²-3.5mm²)
II
10,000 cycles
1.B
2000 m
CE, RoHS
FAQ
1. What heating systems is the Thermostat Panel compatible with?
The Thermostat Panel is designed for hydronic underfloor heating systems and boiler heating systems. It can control hydronic underfloor heating actuators or provide a dry contact signal for boiler control.
The relay output is rated for a maximum load of 3 A. As most electric underfloor heating systems exceed this rating, the Thermostat Panel is not suitable for direct connection to electric underfloor heating.
2. Can the Thermostat Panel control water underfloor heating actuators?
Yes. The Thermostat Panel can control compatible hydronic underfloor heating actuators.
Supported output ratings:
- 100–240 V AC, max. 3 A
By default, the Thermostat Panel uses Normally Open (NO) relay logic. When heating is required, the relay closes and activates the heating output. When heating is no longer required, the relay opens and stops the output.
This default setting is suitable for Normally Closed (NC) actuators.
If your hydronic underfloor heating system uses a Normally Open (NO) actuator, go to Heating System Settings in the eWeLink app and select NO actuator.
If you are unsure about the actuator type, check the product label or consult your heating installer.
3. What type of boiler control does it support?
The Thermostat Panel supports ON/OFF control for boilers with a normally open (NO), potential-free thermostat input.
When heating is required, the COM and NO terminals close to start the boiler. When heating is not required, the contact opens.
⚠ Note:
COM and NO are potential-free contacts for boiler control only. Do not connect them to mains power.
4. Will schedules continue working if the Zigbee connection is disconnected?
Yes. The Thermostat Panel has a built-in real-time clock (RTC), and saved heating schedules are stored locally on the device. They will continue running even when the Zigbee connection is temporarily unavailable, provided that the thermostat remains powered.
5. Can I replace my existing thermostat directly?
It depends on your existing heating system.
Before installation, please check:
- The wiring of your existing thermostat
- Heating actuator specifications
- Boiler control method
- Whether the wall box is compatible with the thermostat’s installation dimensions
The Thermostat Panel requires a live wire (L), a neutral wire (N), and the appropriate control wiring for the connected heating device. If your existing thermostat has only two wires and there are no additional wires available in the wall box, it cannot be directly replaced using the existing wiring. A qualified electrician may be required to provide the necessary wiring.
If you are unsure about the wiring, consult a qualified electrician.
6. Do I need to configure the Heating System Settings in the eWeLink app?
By default, the Thermostat Panel uses Normally Open (NO) relay logic:
When heating is required, the relay closes and activates the corresponding heating control output.
When heating is no longer required, the relay opens and stops the output.
Therefore, the default configuration is suitable for:
- A Normally Closed (NC) actuator for hydronic underfloor heating
- A Normally Open (NO) contact for boiler control
If your hydronic underfloor heating system uses a Normally Open (NO) actuator, go to Heating System Settings in the eWeLink app and select NO actuator.
If your boiler requires a Normally Closed (NC) control contact, go to Heating System Settings and select NC boiler.
If you are unsure about the actuator type or boiler control type, check the product label or boiler manual, or consult your heating installer.
7. Is an external temperature sensor required?
No. The Thermostat Panel can be used with its built-in temperature sensor by default.
An external sensor is optional. If required by your heating system, you can connect a compatible NTC 10 kΩ, β = 3950 sensor to monitor floor temperature.
8. Can the Thermostat Panel be installed on an Italian 503 wall box?
The Thermostat Panel requires an adapter for installation on the 503-type wall boxes commonly used in Italy.
You can download the file and make the adapter using a 3D printer, or use a compatible commercially available adapter.