{"product_id":"engo-controls-eone-batb-zigbee-wireless-smart-thermostat-black","title":"ENGO EONE-BATB ZigBee Smart Thermostat – Wireless, Li-Ion Battery, Humidity Sensor, Black | UFH \u0026 Boiler Control","description":"\u003cstyle\u003e\n  .engo-desc * { box-sizing: border-box; }\n  .engo-desc { font-family: inherit; color: inherit; line-height: 1.7; font-size: 16px; }\n  .engo-desc p, .engo-desc li, .engo-desc td, .engo-desc th { font-size: 16px !important; line-height: 1.7; }\n  .engo-desc h2 { font-size: 22px !important; font-weight: 700; color: #1a1a1a; border-bottom: 2px solid #1a1a1a; padding-bottom: 6px; margin: 2rem 0 1rem; line-height: 1.3; }\n  .engo-desc h3 { font-size: 17px !important; font-weight: 700; color: #1a1a1a; margin: 1.2rem 0 0.4rem; line-height: 1.4; }\n  .engo-desc p { margin: 0 0 1rem; }\n  .engo-desc ul { padding-left: 1.5rem; margin: 0 0 1rem; }\n  .engo-desc ul li { margin-bottom: 0.5rem; }\n\n  .engo-intro-box { background: #f5f5f5; border-left: 4px solid #222; padding: 1.1rem 1.4rem; border-radius: 0 6px 6px 0; margin-bottom: 1.5rem; }\n  .engo-intro-box p { margin: 0 !important; }\n\n  .engo-badge { display: inline-block; background: #222; color: #fff; font-size: 13px !important; font-weight: 700; border-radius: 4px; padding: 2px 10px; margin-right: 6px; margin-bottom: 4px; vertical-align: middle; letter-spacing: 0.04em; }\n  .engo-badge.accent { background: #c05a00; }\n  .engo-badge.green { background: #2e7d32; }\n\n  .engo-why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.85rem; margin-bottom: 1.2rem; }\n  .engo-why-card { background: #f9f9f9; border: 1px solid #ddd; border-radius: 6px; padding: 1rem 1.1rem; line-height: 1.6; }\n  .engo-why-card strong { display: block; color: #1a1a1a; margin-bottom: 0.35rem; font-size: 16px !important; }\n\n  .engo-callout { background: #f0f8f0; border: 1px solid #a5d6a7; border-radius: 6px; padding: 1rem 1.3rem; margin: 1.2rem 0; }\n  .engo-callout h3 { margin-top: 0 !important; }\n  .engo-callout p { margin: 0 !important; }\n\n  .engo-callout-blue { background: #f0f4ff; border-left: 4px solid #1a1a1a; border-radius: 0 6px 6px 0; padding: 1rem 1.3rem; margin: 1.2rem 0; }\n  .engo-callout-blue p { margin: 0 !important; }\n\n  .engo-spec-table { width: 100%; border-collapse: collapse; margin-bottom: 1.2rem; }\n  .engo-spec-table th { background: #222; color: #fff !important; text-align: left; padding: 0.7rem 1rem; font-weight: 600; font-size: 16px !important; }\n  .engo-spec-table td { padding: 0.6rem 1rem; border-bottom: 1px solid #e0e0e0; vertical-align: top; font-size: 16px !important; }\n  .engo-spec-table tr:nth-child(even) td { background: #f5f5f5; }\n  .engo-spec-table td:first-child { font-weight: 600; color: #1a1a1a; width: 42%; }\n\n  .engo-pills { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 1.2rem; }\n  .engo-pill { background: #f0f0f0; color: #1a1a1a; border-radius: 20px; padding: 0.35rem 1rem; font-size: 15px !important; font-weight: 500; border: 1px solid #ccc; line-height: 1.4; }\n\n  .engo-faq-item { border-bottom: 1px solid #e0e0e0; padding: 1rem 0; }\n  .engo-faq-item:last-child { border-bottom: none; }\n  .engo-faq-item p { margin: 0.4rem 0 0 !important; }\n\n  .engo-inbox-list { list-style: none !important; padding: 0 !important; margin: 0 0 1rem !important; }\n  .engo-inbox-list li { padding: 0.5rem 0 0.5rem 1.8rem !important; border-bottom: 1px solid #ebebeb; position: relative; margin-bottom: 0 !important; font-size: 16px !important; }\n  .engo-inbox-list li::before { content: \"✓\"; position: absolute; left: 0; color: #2e7d32; font-weight: 700; }\n\n  .engo-infobox { background: #fff8e6; border: 1px solid #f0d080; border-radius: 6px; padding: 1rem 1.2rem; margin-top: 1.5rem; color: #5a4a00; line-height: 1.6; font-size: 16px !important; }\n\n  @media (max-width: 600px) {\n    .engo-why-grid { grid-template-columns: 1fr; }\n    .engo-spec-table td:first-child { width: auto; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"engo-desc\"\u003e\n\n  \u003cdiv class=\"engo-intro-box\"\u003e\n    \u003cp\u003e\n      \u003cspan class=\"engo-badge\"\u003eZigBee 3.0\u003c\/span\u003e\n      \u003cspan class=\"engo-badge\"\u003eRechargeable Li-Ion — USB-C\u003c\/span\u003e\n      \u003cspan class=\"engo-badge\"\u003eNo Wiring Required\u003c\/span\u003e\n      \u003cspan class=\"engo-badge\"\u003eHumidity Sensor Built-In\u003c\/span\u003e\n      \u003cspan class=\"engo-badge accent\"\u003eAlexa \u0026amp; Google\u003c\/span\u003e\n      \u003cspan class=\"engo-badge green\"\u003e5-Year Warranty\u003c\/span\u003e\n    \u003c\/p\u003e\n    \u003cp style=\"margin-top: 0.7rem !important;\"\u003eThe \u003cstrong\u003eENGO EONE-BATB\u003c\/strong\u003e 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.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eThe 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.\u003c\/p\u003e\n\n  \u003ch2\u003eWhy Buy the ENGO EONE-BATB?\u003c\/h2\u003e\n  \u003cdiv class=\"engo-why-grid\"\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🖤 Matt Black Finish\u003c\/strong\u003eDesigned for modern interiors — pairs naturally with dark switches, sockets, and ENGO's other black-finish products including the EONE-230B and E20i-B.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🔋 Rechargeable Li-Ion — No Disposables\u003c\/strong\u003eBuilt-in 3.7V Li-Ion battery charges via USB-C. No AA or AAA batteries to replace — charge it like a smartphone and it's ready.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e📡 ZigBee 3.0 — No Thermostat Wiring\u003c\/strong\u003eMounts on any wall surface or sits on a desk stand without a mains cable — position it exactly where you get the best temperature reading.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e💧 Built-In Humidity Sensor\u003c\/strong\u003eMonitors room relative humidity alongside temperature — visible on the display and in the ENGO Smart app for comfort and condensation awareness.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e📱 ENGO Smart App\u003c\/strong\u003eRemote control, 7-day scheduling, temperature history graphs, push alerts, and multi-user access sharing via ENGO Smart \/ Tuya app (iOS \u0026amp; Android).\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🎙️ Alexa \u0026amp; Google Assistant\u003c\/strong\u003eVoice-activate heating from any Echo or Google Home device — seamlessly integrated via the Tuya Cloud platform.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🌐 ENGO Binding — Offline Operation\u003c\/strong\u003eBind directly to the ECB62-ZB control box or EMOD-ZB relay — the thermostat controls heating over ZigBee even without internet or gateway.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🌡️ TPI or Hysteresis Control\u003c\/strong\u003eTPI algorithm reduces temperature overshoot — essential for slow-responding underfloor heating. Hysteresis (±0.1°C to ±2°C) also selectable.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🌡️ Floor Sensor Compatible\u003c\/strong\u003eConnect the optional ENGO EFS300 NTC sensor to S1\/COM — enables floor temperature protection and \"comfortable floor\" mode for tiled and wooden floors.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e❄️ Heat \u0026amp; Cool Mode\u003c\/strong\u003eSwitchable heating\/cooling output for heat pump systems and fan coil units with reversible operation.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🔒 Min\/Max Setpoint Limits\u003c\/strong\u003eRestrict the temperature range settable at the thermostat — ideal for rental properties and managed heating installations.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🛡️ 5-Year Warranty\u003c\/strong\u003eFull 5-year ENGO manufacturer's warranty.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSuitable For\u003c\/h2\u003e\n  \u003cdiv class=\"engo-pills\"\u003e\n    \u003cspan class=\"engo-pill\"\u003eWet Underfloor Heating\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eGas \u0026amp; Oil Boilers\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eHeat Pumps (on\/off)\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eENGO ECB62-ZB Control Box\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eENGO EMOD-ZB Relay Module\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eRetrofit Smart UFH Upgrades\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eRented \u0026amp; Managed Properties\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eNo-Chase Installations\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eNew-Build Smart Homes\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eMulti-Room ZigBee Systems\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eHoliday Homes\u003c\/span\u003e\n    \u003cspan class=\"engo-pill\"\u003eBathroom \u0026amp; Wood Floor Rooms\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eAbout the EONE-BATB\u003c\/h2\u003e\n  \u003cp\u003eThe 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 \u003cstrong\u003esurface-mounted, battery-powered black version\u003c\/strong\u003e: at only 14 mm deep, it requires no flush back box — just fix to the wall or use the included desk stand.\u003c\/p\u003e\n\n  \u003cdiv class=\"engo-callout-blue\"\u003e\n    \u003cstrong\u003e📡 ENGO Binding — Reliable Offline Heating Control\u003c\/strong\u003e\u003cbr\u003e\n    The EONE-BATB supports \u003cstrong\u003eENGO Binding\u003c\/strong\u003e: 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.\n  \u003c\/div\u003e\n\n  \u003cp\u003eApp features, remote access, scheduling, and voice control require the \u003cstrong\u003eEGATE-PRO or EGATEZB ZigBee gateway\u003c\/strong\u003e (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.\u003c\/p\u003e\n\n  \u003cp\u003eThe 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%).\u003c\/p\u003e\n\n  \u003cp\u003eThe optional \u003cstrong\u003eENGO EFS300 floor sensor\u003c\/strong\u003e (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.\u003c\/p\u003e\n\n  \u003ch2\u003eKey Features\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZigBee 3.0 wireless\u003c\/strong\u003e — EGATE-PRO or EGATEZB gateway required for app\/cloud\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt-in rechargeable 3.7V Li-Ion battery\u003c\/strong\u003e — charges via USB-C (cable not included)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNo mains wiring\u003c\/strong\u003e at thermostat — fully wireless, surface-mounted installation\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt-in humidity sensor\u003c\/strong\u003e — room RH% on display and in app\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eENGO Binding\u003c\/strong\u003e — direct offline ZigBee control of ECB62-ZB, EMOD-ZB, EREL-12ZB\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTPI algorithm\u003c\/strong\u003e — or Hysteresis (±0.1°C to ±2°C), selectable\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTemperature setpoint range: 5°C – 45°C\u003c\/strong\u003e (display accuracy: 0.5°C)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeating and Cooling mode\u003c\/strong\u003e — switchable for heat pump \/ fan coil compatibility\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS1\/COM floor\/air sensor input\u003c\/strong\u003e — accepts EFS300 NTC sensor\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHotel Card input\u003c\/strong\u003e — triggers eco\/away mode via S1\/S2 volt-free contact\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMin\/max setpoint limits\u003c\/strong\u003e — configurable via installer settings\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eAdjustable display backlight brightness\u003c\/strong\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eENGO Smart app\u003c\/strong\u003e (Tuya Cloud) — iOS \u0026amp; Android; Alexa \u0026amp; Google Home compatible\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTemperature history graphs\u003c\/strong\u003e in app\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUltra-slim surface-mounted\u003c\/strong\u003e — 90 × 90 × 14 mm; no flush back box required\u003c\/li\u003e\n    \u003cli\u003eColour: \u003cstrong\u003eMatt Black\u003c\/strong\u003e — white version: EONE-BATW\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e\u003c\/li\u003e\n    \u003cli\u003eEAN: 5904665764169\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003ctable class=\"engo-spec-table\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eEONE-BATB — Black\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eSurface-mounted (wall or desk stand)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 3.7V Li-Ion rechargeable battery (USB-C charging)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eControl Output\u003c\/td\u003e\n\u003ctd\u003eNone — ZigBee wireless signal to paired receiver\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTemperature Setpoint Range\u003c\/td\u003e\n\u003ctd\u003e5°C – 45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDisplay Temperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e0.5°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eControl Algorithm\u003c\/td\u003e\n\u003ctd\u003eTPI — or Hysteresis (±0.1°C to ±2°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHumidity Sensor\u003c\/td\u003e\n\u003ctd\u003eYes — built-in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSensor Input (S1\/COM)\u003c\/td\u003e\n\u003ctd\u003eFloor\/air NTC temp sensor (EFS300) or volt-free contact (Hotel Card)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eZigBee 3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGateway Required\u003c\/td\u003e\n\u003ctd\u003eYes — ENGO EGATE-PRO or EGATEZB (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eENGO Binding\u003c\/td\u003e\n\u003ctd\u003eYes — direct offline control of ECB62-ZB, EMOD-ZB, EREL-12ZB\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApp Platform\u003c\/td\u003e\n\u003ctd\u003eENGO Smart \/ Tuya Smart (Tuya Cloud) — iOS \u0026amp; Android\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVoice Assistants\u003c\/td\u003e\n\u003ctd\u003eAmazon Alexa, Google Home\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHeating \/ Cooling Mode\u003c\/td\u003e\n\u003ctd\u003eYes — switchable\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOffline Operation\u003c\/td\u003e\n\u003ctd\u003eYes — via ENGO Binding\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e90 × 90 × 14 mm (surface-mounted)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eMatt Black\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEAN\u003c\/td\u003e\n\u003ctd\u003e5904665764169\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h2\u003e\n  \u003cp\u003eThe 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.\u003c\/p\u003e\n\n  \u003cp\u003eThe EONE-BATB has no physical relay output — it relies on the paired receiver to switch the heating load. For UFH, use the \u003cstrong\u003eECB62-ZB wireless control box\u003c\/strong\u003e. For single-zone boiler or electric heating, use the \u003cstrong\u003eEMOD-ZB\u003c\/strong\u003e or \u003cstrong\u003eEREL-12ZB\u003c\/strong\u003e. 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.\u003c\/p\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eDo I need a ZigBee gateway?\u003c\/h3\u003e\n    \u003cp\u003eYes — 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.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eWhat is the difference between EONE-BATB and EONE-230B?\u003c\/h3\u003e\n    \u003cp\u003eBoth are ENGO ONE thermostats with the same ZigBee 3.0 functionality. The EONE-BATB is \u003cstrong\u003esurface-mounted and battery-powered\u003c\/strong\u003e — no mains wiring needed at the thermostat. The EONE-230B is \u003cstrong\u003eflush-mounted and mains-powered\u003c\/strong\u003e (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.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eCan the heating run if the internet goes down?\u003c\/h3\u003e\n    \u003cp\u003eYes — 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.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eHow long does the battery last?\u003c\/h3\u003e\n    \u003cp\u003eBattery 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.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eDoes it need a floor sensor?\u003c\/h3\u003e\n    \u003cp\u003eNo — 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.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul class=\"engo-inbox-list\"\u003e\n    \u003cli\u003eENGO EONE-BATB thermostat (matt black) with built-in Li-Ion battery\u003c\/li\u003e\n    \u003cli\u003eWall-mounting screws and fixings\u003c\/li\u003e\n    \u003cli\u003eDesk stand\u003c\/li\u003e\n    \u003cli\u003eQuick start guide (multilingual, English included)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"engo-infobox\"\u003e\n    \u003cstrong\u003e⚠️ Please Note:\u003c\/strong\u003e A ZigBee gateway (ENGO EGATE-PRO or EGATEZB, sold separately) is required for pairing and app\/cloud features. This thermostat has no physical switching output — pair with a compatible receiver (ECB62-ZB, EMOD-ZB, or EREL-12ZB). USB-C charging cable not included. White version available: \u003cstrong\u003eENGO EONE-BATW\u003c\/strong\u003e. Flush-mounted 230V version available: \u003cstrong\u003eENGO EONE-230B\u003c\/strong\u003e.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"ENGO Controls","offers":[{"title":"Default Title","offer_id":63496764359005,"sku":"EONE-BATB","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/EONEBATB-ENGOControlsZigBeeWirelessSmartThermostatBlack.webp?v=1771496969","url":"https:\/\/qualityheating.co.uk\/products\/engo-controls-eone-batb-zigbee-wireless-smart-thermostat-black","provider":"AIZO Quality Heating","version":"1.0","type":"link"}