{"product_id":"sonoff-spm-main-smart-power-monitoring-hub-din-rail-central","title":"SONOFF Smart Power Monitoring Hub | DIN Rail Central Unit | SPM-MAIN","description":"\u003cp data-start=\"100\" data-end=\"523\"\u003eThe SONOFF SPM-MAIN is a professional smart power monitoring hub designed as the central control unit for the SONOFF Stackable Power Meter System. Built for advanced energy management and multi-circuit monitoring, the SPM-MAIN works together with SONOFF SPM-4RELAY modules to provide centralized control, power monitoring, overload protection, and energy statistics for residential, commercial, and industrial applications.\u003c\/p\u003e\n\u003cp data-start=\"525\" data-end=\"874\"\u003eOne SPM-MAIN unit can connect with up to 32 SPM-4RELAY modules through RS-485 communication, allowing management of up to 128 independent channels. The system is ideal for apartment buildings, offices, shopping centers, server rooms, factories, rental properties, and large-scale electrical monitoring projects. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"876\" data-end=\"1179\"\u003eThe SPM-MAIN supports both Wi-Fi and Ethernet connectivity for stable communication and remote management through the eWeLink app. It also includes local data storage support through a MicroSD card slot for historical power consumption records and local monitoring. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1181\" data-end=\"1303\"\u003eIts DIN rail design enables clean and professional installation inside electrical cabinets and power distribution systems.\u003c\/p\u003e\n\u003chr data-start=\"1305\" data-end=\"1308\"\u003e\n\u003ch3 data-start=\"1310\" data-end=\"1340\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1342\" data-end=\"2058\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1342\" data-end=\"1369\"\u003e\n\u003ctr data-start=\"1342\" data-end=\"1369\"\u003e\n\u003cth data-start=\"1342\" data-end=\"1358\" data-col-size=\"sm\" class=\"\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"1358\" data-end=\"1369\" data-col-size=\"sm\" class=\"\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1380\" data-end=\"2058\"\u003e\n\u003ctr data-start=\"1380\" data-end=\"1415\"\u003e\n\u003ctd data-start=\"1380\" data-end=\"1396\" data-col-size=\"sm\"\u003eProduct Model\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1396\" data-end=\"1415\"\u003eSONOFF SPM-MAIN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1416\" data-end=\"1461\"\u003e\n\u003ctd data-start=\"1416\" data-end=\"1431\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1431\" data-end=\"1461\"\u003eSmart Power Monitoring Hub\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1462\" data-end=\"1504\"\u003e\n\u003ctd data-start=\"1462\" data-end=\"1473\" data-col-size=\"sm\"\u003eFunction\u003c\/td\u003e\n\u003ctd data-start=\"1473\" data-end=\"1504\" data-col-size=\"sm\"\u003eCentral Unit for SPM System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1505\" data-end=\"1547\"\u003e\n\u003ctd data-start=\"1505\" data-end=\"1526\" data-col-size=\"sm\"\u003eCompatible Devices\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1526\" data-end=\"1547\"\u003eSONOFF SPM-4RELAY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1548\" data-end=\"1597\"\u003e\n\u003ctd data-start=\"1548\" data-end=\"1568\" data-col-size=\"sm\"\u003eMaximum Expansion\u003c\/td\u003e\n\u003ctd data-start=\"1568\" data-end=\"1597\" data-col-size=\"sm\"\u003eUp to 32 SPM-4RELAY Units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1598\" data-end=\"1643\"\u003e\n\u003ctd data-start=\"1598\" data-end=\"1627\" data-col-size=\"sm\"\u003eMaximum Supported Channels\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1627\" data-end=\"1643\"\u003e128 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1644\" data-end=\"1682\"\u003e\n\u003ctd data-start=\"1644\" data-end=\"1672\" data-col-size=\"sm\"\u003eCommunication with Relays\u003c\/td\u003e\n\u003ctd data-start=\"1672\" data-end=\"1682\" data-col-size=\"sm\"\u003eRS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1683\" data-end=\"1725\"\u003e\n\u003ctd data-start=\"1683\" data-end=\"1698\" data-col-size=\"sm\"\u003eConnectivity\u003c\/td\u003e\n\u003ctd data-start=\"1698\" data-end=\"1725\" data-col-size=\"sm\"\u003eWi-Fi 2.4GHz \u0026amp; Ethernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1726\" data-end=\"1755\"\u003e\n\u003ctd data-start=\"1726\" data-end=\"1740\" data-col-size=\"sm\"\u003eApp Support\u003c\/td\u003e\n\u003ctd data-start=\"1740\" data-end=\"1755\" data-col-size=\"sm\"\u003eeWeLink App\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1756\" data-end=\"1803\"\u003e\n\u003ctd data-start=\"1756\" data-end=\"1777\" data-col-size=\"sm\"\u003eLocal Data Storage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1777\" data-end=\"1803\"\u003eMicroSD Card Supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1804\" data-end=\"1831\"\u003e\n\u003ctd data-start=\"1804\" data-end=\"1818\" data-col-size=\"sm\"\u003eLAN Control\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1818\" data-end=\"1831\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1832\" data-end=\"1865\"\u003e\n\u003ctd data-start=\"1832\" data-end=\"1852\" data-col-size=\"sm\"\u003eRemote Monitoring\u003c\/td\u003e\n\u003ctd data-start=\"1852\" data-end=\"1865\" data-col-size=\"sm\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1866\" data-end=\"1899\"\u003e\n\u003ctd data-start=\"1866\" data-end=\"1886\" data-col-size=\"sm\"\u003eDIN Rail Mounting\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1886\" data-end=\"1899\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1900\" data-end=\"1939\"\u003e\n\u003ctd data-start=\"1900\" data-end=\"1916\" data-col-size=\"sm\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1916\" data-end=\"1939\"\u003e100-240V AC 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1940\" data-end=\"1960\"\u003e\n\u003ctd data-start=\"1940\" data-end=\"1951\" data-col-size=\"sm\"\u003eMaterial\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1951\" data-end=\"1960\"\u003ePC V0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1961\" data-end=\"2002\"\u003e\n\u003ctd data-start=\"1961\" data-end=\"1985\" data-col-size=\"sm\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1985\" data-end=\"2002\"\u003e-10°C to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2003\" data-end=\"2040\"\u003e\n\u003ctd data-start=\"2003\" data-end=\"2016\" data-col-size=\"sm\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2016\" data-end=\"2040\"\u003e142.5 × 90 × 66.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2041\" data-end=\"2058\"\u003e\n\u003ctd data-start=\"2041\" data-end=\"2049\" data-col-size=\"sm\"\u003eColor\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2049\" data-end=\"2058\"\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2060\" data-end=\"2063\"\u003e\n\u003ch3 data-start=\"2065\" data-end=\"2094\"\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cul data-start=\"2096\" data-end=\"2635\"\u003e\n\u003cli data-start=\"2096\" data-end=\"2142\"\u003eCentralized smart energy monitoring system\u003c\/li\u003e\n\u003cli data-start=\"2143\" data-end=\"2197\"\u003eSupports up to 128 independent monitoring channels\u003c\/li\u003e\n\u003cli data-start=\"2198\" data-end=\"2238\"\u003eWorks with SONOFF SPM-4RELAY modules\u003c\/li\u003e\n\u003cli data-start=\"2239\" data-end=\"2301\"\u003eStable RS-485 communication for long-distance transmission\u003c\/li\u003e\n\u003cli data-start=\"2302\" data-end=\"2358\"\u003eWi-Fi and Ethernet connectivity for reliable control\u003c\/li\u003e\n\u003cli data-start=\"2359\" data-end=\"2411\"\u003eSupports local MicroSD power consumption storage\u003c\/li\u003e\n\u003cli data-start=\"2412\" data-end=\"2457\"\u003eProfessional DIN rail installation design\u003c\/li\u003e\n\u003cli data-start=\"2458\" data-end=\"2524\"\u003eIdeal for buildings, offices, factories, and rental properties\u003c\/li\u003e\n\u003cli data-start=\"2525\" data-end=\"2573\"\u003eReal-time monitoring through the eWeLink app\u003c\/li\u003e\n\u003cli data-start=\"2574\" data-end=\"2635\"\u003eAdvanced overload protection and energy management system\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SONOFF","offers":[{"title":"Default Title","offer_id":52405869183292,"sku":"6920075778021","price":33.0,"currency_code":"JOD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/2356\/2044\/files\/sonoff-spm-main-smart-power-monitoring-hub-din-rail-central-unit-works-with-spm-4relay-energy-management-smart-home-automation-5126097.png?v=1776988088","url":"https:\/\/bestways.com\/products\/sonoff-spm-main-smart-power-monitoring-hub-din-rail-central","provider":"Bestways Smart-home Solutions ","version":"1.0","type":"link"}