ENGO EONE-BATB ZigBee Smart Thermostat – Wireless, Li-Ion Battery, Humidity Sensor, Black | UFH & Boiler Control
ENGO EONE-BATB ZigBee Smart Thermostat – Wireless, Li-Ion Battery, Humidity Sensor, Black | UFH & Boiler Control
ZigBee 3.0 Rechargeable Li-Ion — USB-C No Wiring Required Humidity Sensor Built-In Alexa & Google 5-Year Warranty
The ENGO EONE-BATB is a wireless ZigBee 3.0 smart thermostat in matt black — surface-mounted and powered by a built-in rechargeable 3.7V lithium-ion battery charged via USB-C. No mains wiring is required at the thermostat position, making it the most flexible installation option for retrofit projects, rental properties, or anywhere a cable run to the wall is impractical. It features a smartphone-inspired ultra-slim profile (14 mm deep), a large LCD display with side-mounted buttons, a built-in humidity sensor, TPI algorithm, and full app and voice control via the ENGO EGATE-PRO gateway. The ideal smart thermostat for underfloor heating and boiler systems where aesthetics and cable-free flexibility matter.
The EONE-BATB is the black counterpart to the EONE-BATW — identical in every specification and function, differing only in finish. The matt black casing suits contemporary interiors alongside dark switches, sockets, and fittings. Like the white version, it recharges via any standard USB-C cable (not included) — no disposable batteries, no periodic replacements.
Why Buy the ENGO EONE-BATB?
Suitable For
About the EONE-BATB
The ENGO ONE series is ENGO's premium thermostat line — a smartphone-inspired design with a large, sharp LCD and controls on the sides rather than the face, producing a clean, uncluttered front panel that sits flush and flat on the wall. The EONE-BATB is the surface-mounted, battery-powered black version: at only 14 mm deep, it requires no flush back box — just fix to the wall or use the included desk stand.
The EONE-BATB supports ENGO Binding: a direct ZigBee link between the thermostat and a compatible receiver — the ECB62-ZB wireless UFH control box, the EMOD-ZB mini relay, or the EREL-12ZB relay. Once bound, the thermostat controls its zone directly without the gateway or internet. Heating remains fully operational during broadband outages, making it a genuinely reliable primary heating controller, not just a smart accessory that stops working when the Wi-Fi drops.
App features, remote access, scheduling, and voice control require the EGATE-PRO or EGATEZB ZigBee gateway (sold separately). Once paired, the ENGO Smart app (Tuya Cloud) delivers full remote control from anywhere — 7-day scheduling with multiple periods per day, temperature history graphs, multi-user access for household members or property managers, and push notifications for temperature events.
The built-in humidity sensor reads room relative humidity in real time — shown on the thermostat display and logged in the app. While the thermostat doesn't control humidity directly, the data is useful for comfort monitoring and can be used to trigger automations in ENGO Smart (for example, an alert if bathroom humidity exceeds 70%).
The optional ENGO EFS300 floor sensor (sold separately) connects to the S1/COM input and enables floor overheating protection and "comfortable floor" mode — keeping the floor at a pleasant warmth even when the room air setpoint has been met. Particularly recommended for bathrooms, wet rooms, and rooms with laminate, engineered wood, or LVT flooring.
Key Features
- ZigBee 3.0 wireless — EGATE-PRO or EGATEZB gateway required for app/cloud
- Built-in rechargeable 3.7V Li-Ion battery — charges via USB-C (cable not included)
- No mains wiring at thermostat — fully wireless, surface-mounted installation
- Built-in humidity sensor — room RH% on display and in app
- ENGO Binding — direct offline ZigBee control of ECB62-ZB, EMOD-ZB, EREL-12ZB
- TPI algorithm — or Hysteresis (±0.1°C to ±2°C), selectable
- Temperature setpoint range: 5°C – 45°C (display accuracy: 0.5°C)
- Heating and Cooling mode — switchable for heat pump / fan coil compatibility
- S1/COM floor/air sensor input — accepts EFS300 NTC sensor
- Hotel Card input — triggers eco/away mode via S1/S2 volt-free contact
- Min/max setpoint limits — configurable via installer settings
- Adjustable display backlight brightness
- ENGO Smart app (Tuya Cloud) — iOS & Android; Alexa & Google Home compatible
- Temperature history graphs in app
- Ultra-slim surface-mounted — 90 × 90 × 14 mm; no flush back box required
- Colour: Matt Black — white version: EONE-BATW
- 5-year manufacturer's warranty
- EAN: 5904665764169
Technical Specifications
| Specification | Detail |
|---|---|
| Model | EONE-BATB — Black |
| Mounting Type | Surface-mounted (wall or desk stand) |
| Power Supply | Built-in 3.7V Li-Ion rechargeable battery (USB-C charging) |
| Control Output | None — ZigBee wireless signal to paired receiver |
| Temperature Setpoint Range | 5°C – 45°C |
| Display Temperature Accuracy | 0.5°C |
| Control Algorithm | TPI — or Hysteresis (±0.1°C to ±2°C) |
| Humidity Sensor | Yes — built-in |
| Sensor Input (S1/COM) | Floor/air NTC temp sensor (EFS300) or volt-free contact (Hotel Card) |
| Communication | ZigBee 3.0 |
| Gateway Required | Yes — ENGO EGATE-PRO or EGATEZB (sold separately) |
| ENGO Binding | Yes — direct offline control of ECB62-ZB, EMOD-ZB, EREL-12ZB |
| App Platform | ENGO Smart / Tuya Smart (Tuya Cloud) — iOS & Android |
| Voice Assistants | Amazon Alexa, Google Home |
| Heating / Cooling Mode | Yes — switchable |
| Offline Operation | Yes — via ENGO Binding |
| Dimensions | 90 × 90 × 14 mm (surface-mounted) |
| Colour | Matt Black |
| Warranty | 5 years |
| EAN | 5904665764169 |
Installation & Compatibility Notes
The EONE-BATB mounts directly on the wall surface using the supplied fixings — no flush back box needed. The included desk stand allows freestanding placement on a shelf or worktop. No mains wiring is required at the thermostat location. To use with the ENGO Smart app, pair via the EGATE-PRO or EGATEZB gateway first. For offline heating control, carry out the ENGO Binding procedure to link the thermostat directly to the ECB62-ZB, EMOD-ZB, or EREL-12ZB receiver.
The EONE-BATB has no physical relay output — it relies on the paired receiver to switch the heating load. For UFH, use the ECB62-ZB wireless control box. For single-zone boiler or electric heating, use the EMOD-ZB or EREL-12ZB. Position the thermostat on an interior wall, away from direct sunlight, draughts, and heat sources for the most accurate air temperature reading. Charge the battery via USB-C before initial installation.
Frequently Asked Questions
Do I need a ZigBee gateway?
Yes — a ZigBee gateway (EGATE-PRO or EGATEZB, sold separately) is required to pair the thermostat and use any app or voice control features. Once paired and bound to a receiver, it can continue to operate offline via ENGO Binding.
What is the difference between EONE-BATB and EONE-230B?
Both are ENGO ONE thermostats with the same ZigBee 3.0 functionality. The EONE-BATB is surface-mounted and battery-powered — no mains wiring needed at the thermostat. The EONE-230B is flush-mounted and mains-powered (230V AC) — it has a physical COM/NO relay output for direct wired connection to a receiver or control box, and does not need the receiver to carry out the switching.
Can the heating run if the internet goes down?
Yes — via ENGO Binding, the thermostat communicates directly with the receiver over ZigBee without needing the gateway or internet. App control and voice assistants will be unavailable during an outage, but heating continues normally.
How long does the battery last?
Battery life depends on ZigBee transmission frequency, backlight usage, and ambient temperature. Typical use provides several weeks to a few months between charges. The thermostat display will show a low battery indicator when charging is needed.
Does it need a floor sensor?
No — the EFS300 floor sensor is optional. Without it, the thermostat controls purely on room air temperature. The floor sensor is recommended for rooms with laminate, wood, or LVT flooring (to prevent overheating) and for bathrooms where a warm floor is the primary comfort goal.
What's in the Box
- ENGO EONE-BATB thermostat (matt black) with built-in Li-Ion battery
- Wall-mounting screws and fixings
- Desk stand
- Quick start guide (multilingual, English included)
Original: $101.23
-65%$101.23
$35.43More Images
ENGO EONE-BATB ZigBee Smart Thermostat – Wireless, Li-Ion Battery, Humidity Sensor, Black | UFH & Boiler Control
ZigBee 3.0 Rechargeable Li-Ion — USB-C No Wiring Required Humidity Sensor Built-In Alexa & Google 5-Year Warranty
The ENGO EONE-BATB is a wireless ZigBee 3.0 smart thermostat in matt black — surface-mounted and powered by a built-in rechargeable 3.7V lithium-ion battery charged via USB-C. No mains wiring is required at the thermostat position, making it the most flexible installation option for retrofit projects, rental properties, or anywhere a cable run to the wall is impractical. It features a smartphone-inspired ultra-slim profile (14 mm deep), a large LCD display with side-mounted buttons, a built-in humidity sensor, TPI algorithm, and full app and voice control via the ENGO EGATE-PRO gateway. The ideal smart thermostat for underfloor heating and boiler systems where aesthetics and cable-free flexibility matter.
The EONE-BATB is the black counterpart to the EONE-BATW — identical in every specification and function, differing only in finish. The matt black casing suits contemporary interiors alongside dark switches, sockets, and fittings. Like the white version, it recharges via any standard USB-C cable (not included) — no disposable batteries, no periodic replacements.
Why Buy the ENGO EONE-BATB?
Suitable For
About the EONE-BATB
The ENGO ONE series is ENGO's premium thermostat line — a smartphone-inspired design with a large, sharp LCD and controls on the sides rather than the face, producing a clean, uncluttered front panel that sits flush and flat on the wall. The EONE-BATB is the surface-mounted, battery-powered black version: at only 14 mm deep, it requires no flush back box — just fix to the wall or use the included desk stand.
The EONE-BATB supports ENGO Binding: a direct ZigBee link between the thermostat and a compatible receiver — the ECB62-ZB wireless UFH control box, the EMOD-ZB mini relay, or the EREL-12ZB relay. Once bound, the thermostat controls its zone directly without the gateway or internet. Heating remains fully operational during broadband outages, making it a genuinely reliable primary heating controller, not just a smart accessory that stops working when the Wi-Fi drops.
App features, remote access, scheduling, and voice control require the EGATE-PRO or EGATEZB ZigBee gateway (sold separately). Once paired, the ENGO Smart app (Tuya Cloud) delivers full remote control from anywhere — 7-day scheduling with multiple periods per day, temperature history graphs, multi-user access for household members or property managers, and push notifications for temperature events.
The built-in humidity sensor reads room relative humidity in real time — shown on the thermostat display and logged in the app. While the thermostat doesn't control humidity directly, the data is useful for comfort monitoring and can be used to trigger automations in ENGO Smart (for example, an alert if bathroom humidity exceeds 70%).
The optional ENGO EFS300 floor sensor (sold separately) connects to the S1/COM input and enables floor overheating protection and "comfortable floor" mode — keeping the floor at a pleasant warmth even when the room air setpoint has been met. Particularly recommended for bathrooms, wet rooms, and rooms with laminate, engineered wood, or LVT flooring.
Key Features
- ZigBee 3.0 wireless — EGATE-PRO or EGATEZB gateway required for app/cloud
- Built-in rechargeable 3.7V Li-Ion battery — charges via USB-C (cable not included)
- No mains wiring at thermostat — fully wireless, surface-mounted installation
- Built-in humidity sensor — room RH% on display and in app
- ENGO Binding — direct offline ZigBee control of ECB62-ZB, EMOD-ZB, EREL-12ZB
- TPI algorithm — or Hysteresis (±0.1°C to ±2°C), selectable
- Temperature setpoint range: 5°C – 45°C (display accuracy: 0.5°C)
- Heating and Cooling mode — switchable for heat pump / fan coil compatibility
- S1/COM floor/air sensor input — accepts EFS300 NTC sensor
- Hotel Card input — triggers eco/away mode via S1/S2 volt-free contact
- Min/max setpoint limits — configurable via installer settings
- Adjustable display backlight brightness
- ENGO Smart app (Tuya Cloud) — iOS & Android; Alexa & Google Home compatible
- Temperature history graphs in app
- Ultra-slim surface-mounted — 90 × 90 × 14 mm; no flush back box required
- Colour: Matt Black — white version: EONE-BATW
- 5-year manufacturer's warranty
- EAN: 5904665764169
Technical Specifications
| Specification | Detail |
|---|---|
| Model | EONE-BATB — Black |
| Mounting Type | Surface-mounted (wall or desk stand) |
| Power Supply | Built-in 3.7V Li-Ion rechargeable battery (USB-C charging) |
| Control Output | None — ZigBee wireless signal to paired receiver |
| Temperature Setpoint Range | 5°C – 45°C |
| Display Temperature Accuracy | 0.5°C |
| Control Algorithm | TPI — or Hysteresis (±0.1°C to ±2°C) |
| Humidity Sensor | Yes — built-in |
| Sensor Input (S1/COM) | Floor/air NTC temp sensor (EFS300) or volt-free contact (Hotel Card) |
| Communication | ZigBee 3.0 |
| Gateway Required | Yes — ENGO EGATE-PRO or EGATEZB (sold separately) |
| ENGO Binding | Yes — direct offline control of ECB62-ZB, EMOD-ZB, EREL-12ZB |
| App Platform | ENGO Smart / Tuya Smart (Tuya Cloud) — iOS & Android |
| Voice Assistants | Amazon Alexa, Google Home |
| Heating / Cooling Mode | Yes — switchable |
| Offline Operation | Yes — via ENGO Binding |
| Dimensions | 90 × 90 × 14 mm (surface-mounted) |
| Colour | Matt Black |
| Warranty | 5 years |
| EAN | 5904665764169 |
Installation & Compatibility Notes
The EONE-BATB mounts directly on the wall surface using the supplied fixings — no flush back box needed. The included desk stand allows freestanding placement on a shelf or worktop. No mains wiring is required at the thermostat location. To use with the ENGO Smart app, pair via the EGATE-PRO or EGATEZB gateway first. For offline heating control, carry out the ENGO Binding procedure to link the thermostat directly to the ECB62-ZB, EMOD-ZB, or EREL-12ZB receiver.
The EONE-BATB has no physical relay output — it relies on the paired receiver to switch the heating load. For UFH, use the ECB62-ZB wireless control box. For single-zone boiler or electric heating, use the EMOD-ZB or EREL-12ZB. Position the thermostat on an interior wall, away from direct sunlight, draughts, and heat sources for the most accurate air temperature reading. Charge the battery via USB-C before initial installation.
Frequently Asked Questions
Do I need a ZigBee gateway?
Yes — a ZigBee gateway (EGATE-PRO or EGATEZB, sold separately) is required to pair the thermostat and use any app or voice control features. Once paired and bound to a receiver, it can continue to operate offline via ENGO Binding.
What is the difference between EONE-BATB and EONE-230B?
Both are ENGO ONE thermostats with the same ZigBee 3.0 functionality. The EONE-BATB is surface-mounted and battery-powered — no mains wiring needed at the thermostat. The EONE-230B is flush-mounted and mains-powered (230V AC) — it has a physical COM/NO relay output for direct wired connection to a receiver or control box, and does not need the receiver to carry out the switching.
Can the heating run if the internet goes down?
Yes — via ENGO Binding, the thermostat communicates directly with the receiver over ZigBee without needing the gateway or internet. App control and voice assistants will be unavailable during an outage, but heating continues normally.
How long does the battery last?
Battery life depends on ZigBee transmission frequency, backlight usage, and ambient temperature. Typical use provides several weeks to a few months between charges. The thermostat display will show a low battery indicator when charging is needed.
Does it need a floor sensor?
No — the EFS300 floor sensor is optional. Without it, the thermostat controls purely on room air temperature. The floor sensor is recommended for rooms with laminate, wood, or LVT flooring (to prevent overheating) and for bathrooms where a warm floor is the primary comfort goal.
What's in the Box
- ENGO EONE-BATB thermostat (matt black) with built-in Li-Ion battery
- Wall-mounting screws and fixings
- Desk stand
- Quick start guide (multilingual, English included)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
ZigBee 3.0 Rechargeable Li-Ion — USB-C No Wiring Required Humidity Sensor Built-In Alexa & Google 5-Year Warranty
The ENGO EONE-BATB is a wireless ZigBee 3.0 smart thermostat in matt black — surface-mounted and powered by a built-in rechargeable 3.7V lithium-ion battery charged via USB-C. No mains wiring is required at the thermostat position, making it the most flexible installation option for retrofit projects, rental properties, or anywhere a cable run to the wall is impractical. It features a smartphone-inspired ultra-slim profile (14 mm deep), a large LCD display with side-mounted buttons, a built-in humidity sensor, TPI algorithm, and full app and voice control via the ENGO EGATE-PRO gateway. The ideal smart thermostat for underfloor heating and boiler systems where aesthetics and cable-free flexibility matter.
The EONE-BATB is the black counterpart to the EONE-BATW — identical in every specification and function, differing only in finish. The matt black casing suits contemporary interiors alongside dark switches, sockets, and fittings. Like the white version, it recharges via any standard USB-C cable (not included) — no disposable batteries, no periodic replacements.
Why Buy the ENGO EONE-BATB?
Suitable For
About the EONE-BATB
The ENGO ONE series is ENGO's premium thermostat line — a smartphone-inspired design with a large, sharp LCD and controls on the sides rather than the face, producing a clean, uncluttered front panel that sits flush and flat on the wall. The EONE-BATB is the surface-mounted, battery-powered black version: at only 14 mm deep, it requires no flush back box — just fix to the wall or use the included desk stand.
The EONE-BATB supports ENGO Binding: a direct ZigBee link between the thermostat and a compatible receiver — the ECB62-ZB wireless UFH control box, the EMOD-ZB mini relay, or the EREL-12ZB relay. Once bound, the thermostat controls its zone directly without the gateway or internet. Heating remains fully operational during broadband outages, making it a genuinely reliable primary heating controller, not just a smart accessory that stops working when the Wi-Fi drops.
App features, remote access, scheduling, and voice control require the EGATE-PRO or EGATEZB ZigBee gateway (sold separately). Once paired, the ENGO Smart app (Tuya Cloud) delivers full remote control from anywhere — 7-day scheduling with multiple periods per day, temperature history graphs, multi-user access for household members or property managers, and push notifications for temperature events.
The built-in humidity sensor reads room relative humidity in real time — shown on the thermostat display and logged in the app. While the thermostat doesn't control humidity directly, the data is useful for comfort monitoring and can be used to trigger automations in ENGO Smart (for example, an alert if bathroom humidity exceeds 70%).
The optional ENGO EFS300 floor sensor (sold separately) connects to the S1/COM input and enables floor overheating protection and "comfortable floor" mode — keeping the floor at a pleasant warmth even when the room air setpoint has been met. Particularly recommended for bathrooms, wet rooms, and rooms with laminate, engineered wood, or LVT flooring.
Key Features
- ZigBee 3.0 wireless — EGATE-PRO or EGATEZB gateway required for app/cloud
- Built-in rechargeable 3.7V Li-Ion battery — charges via USB-C (cable not included)
- No mains wiring at thermostat — fully wireless, surface-mounted installation
- Built-in humidity sensor — room RH% on display and in app
- ENGO Binding — direct offline ZigBee control of ECB62-ZB, EMOD-ZB, EREL-12ZB
- TPI algorithm — or Hysteresis (±0.1°C to ±2°C), selectable
- Temperature setpoint range: 5°C – 45°C (display accuracy: 0.5°C)
- Heating and Cooling mode — switchable for heat pump / fan coil compatibility
- S1/COM floor/air sensor input — accepts EFS300 NTC sensor
- Hotel Card input — triggers eco/away mode via S1/S2 volt-free contact
- Min/max setpoint limits — configurable via installer settings
- Adjustable display backlight brightness
- ENGO Smart app (Tuya Cloud) — iOS & Android; Alexa & Google Home compatible
- Temperature history graphs in app
- Ultra-slim surface-mounted — 90 × 90 × 14 mm; no flush back box required
- Colour: Matt Black — white version: EONE-BATW
- 5-year manufacturer's warranty
- EAN: 5904665764169
Technical Specifications
| Specification | Detail |
|---|---|
| Model | EONE-BATB — Black |
| Mounting Type | Surface-mounted (wall or desk stand) |
| Power Supply | Built-in 3.7V Li-Ion rechargeable battery (USB-C charging) |
| Control Output | None — ZigBee wireless signal to paired receiver |
| Temperature Setpoint Range | 5°C – 45°C |
| Display Temperature Accuracy | 0.5°C |
| Control Algorithm | TPI — or Hysteresis (±0.1°C to ±2°C) |
| Humidity Sensor | Yes — built-in |
| Sensor Input (S1/COM) | Floor/air NTC temp sensor (EFS300) or volt-free contact (Hotel Card) |
| Communication | ZigBee 3.0 |
| Gateway Required | Yes — ENGO EGATE-PRO or EGATEZB (sold separately) |
| ENGO Binding | Yes — direct offline control of ECB62-ZB, EMOD-ZB, EREL-12ZB |
| App Platform | ENGO Smart / Tuya Smart (Tuya Cloud) — iOS & Android |
| Voice Assistants | Amazon Alexa, Google Home |
| Heating / Cooling Mode | Yes — switchable |
| Offline Operation | Yes — via ENGO Binding |
| Dimensions | 90 × 90 × 14 mm (surface-mounted) |
| Colour | Matt Black |
| Warranty | 5 years |
| EAN | 5904665764169 |
Installation & Compatibility Notes
The EONE-BATB mounts directly on the wall surface using the supplied fixings — no flush back box needed. The included desk stand allows freestanding placement on a shelf or worktop. No mains wiring is required at the thermostat location. To use with the ENGO Smart app, pair via the EGATE-PRO or EGATEZB gateway first. For offline heating control, carry out the ENGO Binding procedure to link the thermostat directly to the ECB62-ZB, EMOD-ZB, or EREL-12ZB receiver.
The EONE-BATB has no physical relay output — it relies on the paired receiver to switch the heating load. For UFH, use the ECB62-ZB wireless control box. For single-zone boiler or electric heating, use the EMOD-ZB or EREL-12ZB. Position the thermostat on an interior wall, away from direct sunlight, draughts, and heat sources for the most accurate air temperature reading. Charge the battery via USB-C before initial installation.
Frequently Asked Questions
Do I need a ZigBee gateway?
Yes — a ZigBee gateway (EGATE-PRO or EGATEZB, sold separately) is required to pair the thermostat and use any app or voice control features. Once paired and bound to a receiver, it can continue to operate offline via ENGO Binding.
What is the difference between EONE-BATB and EONE-230B?
Both are ENGO ONE thermostats with the same ZigBee 3.0 functionality. The EONE-BATB is surface-mounted and battery-powered — no mains wiring needed at the thermostat. The EONE-230B is flush-mounted and mains-powered (230V AC) — it has a physical COM/NO relay output for direct wired connection to a receiver or control box, and does not need the receiver to carry out the switching.
Can the heating run if the internet goes down?
Yes — via ENGO Binding, the thermostat communicates directly with the receiver over ZigBee without needing the gateway or internet. App control and voice assistants will be unavailable during an outage, but heating continues normally.
How long does the battery last?
Battery life depends on ZigBee transmission frequency, backlight usage, and ambient temperature. Typical use provides several weeks to a few months between charges. The thermostat display will show a low battery indicator when charging is needed.
Does it need a floor sensor?
No — the EFS300 floor sensor is optional. Without it, the thermostat controls purely on room air temperature. The floor sensor is recommended for rooms with laminate, wood, or LVT flooring (to prevent overheating) and for bathrooms where a warm floor is the primary comfort goal.
What's in the Box
- ENGO EONE-BATB thermostat (matt black) with built-in Li-Ion battery
- Wall-mounting screws and fixings
- Desk stand
- Quick start guide (multilingual, English included)
