Description
The SONOFF Thermostat Core (TP-WGZBA) is a Zigbee 3.0 smart thermostat for hydronic underfloor heating and boiler systems. It combines a powered output that drives underfloor heating actuators (max. 3A) with a potential-free dry contact output (COM, NO) for boiler control, in a clean white flush wall-mount panel with a smooth physical dial.
Built-in human presence sensing wakes the display as you approach and turns it off when you leave. Three independent heating plans, each with a full week of scheduling and up to 12 time periods per day, plus window-open detection, child lock and anti-freeze mode keep your home comfortable and efficient.
Note: a Zigbee gateway is required (see "Works With" below). The Thermostat Core is not suitable for direct connection to electric underfloor heating.
Key Features
- Dual outputs: active relay output for water heating actuators (max. 3A, resistive load) and passive dry contact (COM, NO) for boilers
- 3 independent heating plans, each with a full week of scheduling and up to 12 time periods per day
- Built-in human presence sensing wakes the display, with adjustable screen brightness
- Smooth physical dial for intuitive temperature control
- Smart window-open detection, plus door/window sensor integration, pauses heating to avoid wasted energy
- Connect a remote temperature sensor on the same gateway to measure the actual room temperature
- External NTC floor sensor support (10KΩ, B value 3950K) with overheat protection; NTC sensor sold separately
- Child lock, anti-freeze mode and boost mode
- Heating data stored for up to 6 months: target temperature, actual temperature and heating activity
Works With
Technical Specifications
| Specification |
Details |
| Model |
TP-WGZBA |
| Product Type |
Zigbee Smart Thermostat |
| Wireless Protocol |
Zigbee 3.0 (IEEE 802.15.4) |
| Applicable System |
Water heating system |
| Installation Method |
Flush wall mount |
| Rated Parameters |
Max. 3A, 100-240V~ 50/60Hz |
| Water Heating Actuator Output |
Active relay output, max. 3A (resistive load) |
| Boiler Control Output |
Passive dry contact output (COM, NO) |
| Temperature Setting Range |
5°C ~ 30°C |
| Radar Detection Distance |
Low: approx. 0.3 m; Medium: approx. 0.6 m; High: approx. 1 m |
| External NTC Floor Sensor |
10KΩ NTC, B value 3950K (sold separately) |
| Operating Temperature |
0°C ~ 50°C |
| Operating Humidity |
≤90% RH, non-condensing |
| Dimensions |
86 × 86 × 45.5 mm |
| In-Wall Depth |
31.5 mm |
| Mounting Screw Hole Distance |
60 mm |
| Recommended Wire Size |
24AWG-12AWG (0.2-3.5 mm²) |
| Rated Impulse Voltage |
4KV |
| Automatic Operation Cycles |
10,000 cycles |
| Operating Altitude |
2000 m |
| Housing Material |
PC |
| Color |
White |
| Net Weight |
155 g |
| Certifications |
CE, RoHS |
Why Choose the SONOFF TP-WGZBA?
- One thermostat for hydronic underfloor heating actuators and boilers
- Presence-aware display and a physical dial for easy everyday use
- Flexible weekly schedules for weekdays, weekends, holidays and family routines
- Energy saving with window-open detection and room-temperature compensation
Downloads
⬇ Download User Manual (PDF)
Warranty: 12-month warranty from the Official Distributor.
