{"product_id":"engo-eone-batw-zigbee-wireless-smart-thermostat-white","title":"ENGO EONE-BATW ZigBee Smart Thermostat – Wireless, Li-Ion Battery, Humidity Sensor, White | 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-BATW\u003c\/strong\u003e is a wireless ZigBee 3.0 smart thermostat in white — 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 option for retrofit installations, rented properties, or anywhere running cable to the wall is impractical. It features a smartphone-inspired large LCD display with side buttons, a built-in humidity sensor, TPI control algorithm, and full app and voice control via the EGATE-PRO gateway. Ideal for wet underfloor heating, boiler control, and heat pump systems.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eUnlike conventional battery thermostats that need periodic AA or AAA replacement, the EONE-BATW uses a \u003cstrong\u003ebuilt-in 3.7V Li-Ion cell that recharges via USB-C\u003c\/strong\u003e — the same connector as most modern smartphones. This means no hunting for batteries, no disposables, and no interruption to heating control when the battery runs flat. Simply plug in a USB-C cable (not included) to top up the charge, and the thermostat continues to operate.\u003c\/p\u003e\n\n  \u003ch2\u003eWhy Buy the ENGO EONE-BATW?\u003c\/h2\u003e\n  \u003cdiv class=\"engo-why-grid\"\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🔋 Rechargeable Li-Ion — No Battery Replacement\u003c\/strong\u003eBuilt-in 3.7V Li-Ion battery charges via USB-C — no disposable batteries ever. Charge it like your phone and it's ready to go.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e📡 ZigBee 3.0 Wireless\u003c\/strong\u003eNo thermostat wiring needed — mounts anywhere on the wall or sits on a shelf. Works via ZigBee mesh through the EGATE-PRO gateway.\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 — viewable in the ENGO Smart app, useful for comfort monitoring and condensation risk awareness.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e📱 ENGO Smart App Control\u003c\/strong\u003eFull remote access, scheduling, temperature history graphs, and push notifications via the 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 via any Echo or Google device — \"Alexa, set the living room to 21 degrees.\"\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🌐 ENGO Binding — Works Offline\u003c\/strong\u003ePair directly with the ECB62-ZB control box or EMOD-ZB relay via ZigBee Binding — heating keeps running 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 minimises temperature overshoot — perfect for underfloor heating. Hysteresis (±0.1°C to ±2°C) also available.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🌡️ Floor Sensor Compatible\u003c\/strong\u003eConnect an optional ENGO EFS300 floor temperature sensor to S1\/COM — enables floor overheating protection and \"comfortable floor\" mode.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e❄️ Heat \u0026amp; Cool Mode\u003c\/strong\u003eSwitchable heating and cooling output for heat pump systems and fan coil units.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e🔒 Min\/Max Setpoint Limits\u003c\/strong\u003eLock the maximum and minimum settable temperature — useful for rental properties and landlord-managed heating.\u003c\/div\u003e\n    \u003cdiv class=\"engo-why-card\"\u003e\n\u003cstrong\u003e📊 Temperature History in App\u003c\/strong\u003eView graphs of temperature over time in the ENGO Smart app — helps optimise schedules and identify inefficiencies.\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 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; Tiled Floor Rooms\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eAbout the EONE-BATW\u003c\/h2\u003e\n  \u003cp\u003eThe ENGO ONE series represents ENGO's flagship thermostat design — a smartphone-inspired form factor with a large, legible LCD display and function buttons on the side rather than the face, giving a clean, minimal front appearance. The EONE-BATW is the \u003cstrong\u003esurface-mounted, battery-powered\u003c\/strong\u003e version: at just 14 mm deep, it sits flat on the wall without a flush back box, or can stand freely on a shelf using the included stand. It is the wireless counterpart to the EONE-230W, which is flush-mounted and mains-powered.\u003c\/p\u003e\n\n  \u003cdiv class=\"engo-callout-blue\"\u003e\n    \u003cstrong\u003e📡 ENGO Binding — Offline Heating Control\u003c\/strong\u003e\u003cbr\u003e\n    The EONE-BATW supports \u003cstrong\u003eENGO Binding\u003c\/strong\u003e — a direct ZigBee link between the thermostat and a compatible receiver (ECB62-ZB control box, EMOD-ZB relay, or EREL-12ZB relay). Once bound, the thermostat controls its zone directly without needing the gateway or an internet connection. This means heating remains fully operational even during broadband outages or gateway failures — critical reliability for a primary heating control device.\n  \u003c\/div\u003e\n\n  \u003cp\u003eThe thermostat connects to the ENGO Smart ecosystem via the \u003cstrong\u003eEGATE-PRO (or EGATEZB) ZigBee gateway\u003c\/strong\u003e, which is required for app control, remote access, scheduling, and voice assistant integration. Once paired, the ENGO Smart app (powered by Tuya Cloud) provides full remote control from any smartphone — including 7-day scheduling, temperature history graphs, multi-user access sharing, and push notifications for temperature alerts.\u003c\/p\u003e\n\n  \u003cp\u003eThe built-in humidity sensor provides real-time relative humidity readings alongside room temperature — displayed on the thermostat and viewable in the app. While the EONE-BATW does not control humidity directly, the data helps identify rooms at risk of condensation and can be used to trigger automations in the ENGO Smart app (for example, alerting when humidity exceeds a set threshold).\u003c\/p\u003e\n\n  \u003cp\u003eAn optional \u003cstrong\u003eENGO EFS300 floor temperature sensor\u003c\/strong\u003e can be connected to the S1\/COM terminals, enabling floor overheating protection and the \"comfortable floor\" mode — keeping the floor at a minimum warmth even when the room air temperature setpoint has been reached. This is particularly valuable in bathrooms, wet rooms, and rooms with laminate or engineered wood flooring.\u003c\/p\u003e\n\n  \u003ch2\u003eKey Features\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZigBee 3.0 wireless communication\u003c\/strong\u003e — requires EGATE-PRO or EGATEZB gateway for app\/cloud features\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt-in rechargeable 3.7V Li-Ion battery\u003c\/strong\u003e — charged via USB-C (cable not included)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNo mains wiring required\u003c\/strong\u003e at thermostat position — fully wireless installation\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt-in humidity sensor\u003c\/strong\u003e — room RH% displayed on screen and in app\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eENGO Binding\u003c\/strong\u003e — direct offline control of ECB62-ZB, EMOD-ZB, EREL-12ZB without internet\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 compatibility\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS1\/COM floor sensor input\u003c\/strong\u003e — accepts optional EFS300 NTC sensor\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHotel Card input\u003c\/strong\u003e — activates eco\/away mode when card removed (via S1\/S2)\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 Assistant compatible\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTemperature history graphs\u003c\/strong\u003e in ENGO Smart app\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSurface-mounted\u003c\/strong\u003e — 90 × 90 × 14 mm; no flush back box required\u003c\/li\u003e\n    \u003cli\u003eColour: \u003cstrong\u003eWhite\u003c\/strong\u003e — black version: EONE-BATB\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003e5-year manufacturer's warranty\u003c\/strong\u003e\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-BATW — White\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 — wireless ZigBee control signal only (pairs with receiver\/relay)\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 (direct thermostat-to-receiver link)\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\u003eWhite\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\u003e5904665764152\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-BATW mounts on the wall surface using the supplied fixings — no flush back box is needed. Alternatively, use the included desk stand to position it on a shelf or worktop. No mains wiring is required at the thermostat location. The thermostat communicates wirelessly via ZigBee 3.0 to the EGATE-PRO gateway and from there to the ENGO Smart app. For direct heating control without app dependency, bind it to a compatible receiver (ECB62-ZB, EMOD-ZB, or EREL-12ZB) using the ENGO Binding procedure.\u003c\/p\u003e\n\n  \u003cp\u003eThe thermostat does not have its own switching output — it sends a ZigBee signal to the bound receiver, which switches the heating load. For UFH systems, pair with the \u003cstrong\u003eECB62-ZB wireless control box\u003c\/strong\u003e; for single-zone boiler or electric heating control, pair with the \u003cstrong\u003eEMOD-ZB\u003c\/strong\u003e mini relay module or \u003cstrong\u003eEREL-12ZB\u003c\/strong\u003e relay. A \u003cstrong\u003eZigBee gateway (EGATE-PRO or EGATEZB) is required\u003c\/strong\u003e for pairing and for any cloud\/app features — it cannot pair directly without a gateway.\u003c\/p\u003e\n\n  \u003cp\u003eCharge the built-in Li-Ion battery via any standard USB-C charger or power bank. Battery life will depend on the ZigBee transmission frequency and backlight usage — typical usage provides several weeks to months between charges. Mount the thermostat away from direct sunlight, draughts, external walls, and heat sources for the most accurate temperature readings.\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 (ENGO EGATE-PRO or EGATEZB) is required to add the EONE-BATW to your network and access any app or voice control features. However, once paired and bound to a receiver, the thermostat can continue to control heating offline (without internet) via ENGO Binding.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eWhat receiver\/relay does this thermostat need?\u003c\/h3\u003e\n    \u003cp\u003eThe EONE-BATW pairs with the ECB62-ZB wireless UFH control box (for multi-zone underfloor heating), the EMOD-ZB mini relay module, or the EREL-12ZB relay (for single-zone boiler or heating control). The receiver is what actually switches the heating load — the thermostat only sends the ZigBee signal.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eWhat is the difference between EONE-BATW and EONE-230W?\u003c\/h3\u003e\n    \u003cp\u003eBoth are ENGO ONE thermostats with identical functionality and ZigBee 3.0 communication. The EONE-BATW is \u003cstrong\u003esurface-mounted and battery-powered\u003c\/strong\u003e (no mains wiring at the thermostat) — maximum flexibility for positioning. The EONE-230W is \u003cstrong\u003eflush-mounted and mains-powered\u003c\/strong\u003e (230V AC) — it has a physical switching output (COM\/NO) for direct wired connection to a receiver, wiring centre, or control box.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eCan it work without the internet?\u003c\/h3\u003e\n    \u003cp\u003eYes — via ENGO Binding. Once bound to a compatible receiver, the thermostat controls heating directly over ZigBee without needing the gateway or internet. App features, remote control, and voice assistants require the gateway and an internet connection.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eDoes it measure humidity?\u003c\/h3\u003e\n    \u003cp\u003eYes — there is a built-in humidity sensor that provides room relative humidity readings on the display and in the ENGO Smart app. It is for monitoring only; the thermostat does not control humidity directly.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eIs the USB-C charger included?\u003c\/h3\u003e\n    \u003cp\u003eNo — a USB-C cable and charger are not included. Any standard USB-C charger or cable (as used for Android phones) will work.\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-BATW thermostat (white) 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 — it must be paired with a compatible receiver (ECB62-ZB, EMOD-ZB, or EREL-12ZB). USB-C charging cable not included. Black version available: \u003cstrong\u003eENGO EONE-BATB\u003c\/strong\u003e. Flush-mounted 230V version available: \u003cstrong\u003eENGO EONE-230W\u003c\/strong\u003e.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"ENGO Controls","offers":[{"title":"Default Title","offer_id":63496747778397,"sku":"EONE-BATW","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ENGOControlsEONE-BATWZigBeeWirelessSmartThermostat-White.webp?v=1771496913","url":"https:\/\/qualityheating.co.uk\/products\/engo-eone-batw-zigbee-wireless-smart-thermostat-white","provider":"AIZO Quality Heating","version":"1.0","type":"link"}