{"product_id":"refoss-smart-home-energy-monitor-real-time-usage-18-circuits-local-data-open-api","title":"Refoss Smart Home Energy Monitor – Real-Time Usage, 18 Circuits, Local Data \u0026 Open API","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Refoss Smart Home Energy Monitor is designed to illuminate how electricity travels through your home. With professional-grade accuracy across 18 circuits, it delivers real-time usage data that helps you understand where energy is being consumed and where there may be opportunities to optimize efficiency.\u003c\/p\u003e\n\u003cp\u003ePrivacy comes first. This system stores data locally and provides flexible control options through a built-in Web UI, an Open API, MQTT, and WebSocket connections. Compatible with Home Assistant, it enables powerful automations without relying on cloud services or ongoing subscriptions, so you can manage your power with confidence.\u003c\/p\u003e\n\n\u003ch3\u003eKey capabilities\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise sensing across 18 circuits (2 main sensors up to 200A, 16 branch sensors up to 60A) with ±1% accuracy for a detailed energy map.\u003c\/li\u003e\n\u003cli\u003eSolar metering and optimization: direct surplus solar energy to mid-power appliances and optimize self-consumption to potentially lower grid feeds.\u003c\/li\u003e\n\u003cli\u003eSmart fault alerts that flag unusual energy usage, helping you spot developing inefficiencies before they escalate.\u003c\/li\u003e\n\u003cli\u003eLong-term analytics: 5-year data retention with daily history, exportable CSV data, and no required subscription.\u003c\/li\u003e\n\u003cli\u003eLocal privacy architecture with a robust external antenna for stable Wi‑Fi, plus open APIs and MQTT for flexible integrations.\u003c\/li\u003e\n\u003cli\u003eFlexible electrical configurations: supports single-phase, split-phase, and 3‑phase four-wire setups; designed for straightforward installation and maintenance.\u003c\/li\u003e\n\u003cli\u003eUser-friendly recovery: if a sensor is installed backward, flipping the reading in the app is a single tap—no rework or breaker access required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal-world use cases\u003c\/h3\u003e\n\u003cp\u003eEnvision mornings where the heat pump and water heater come online, afternoons when solar generation peaks, and evenings when a mix of appliances runs. With Refoss, you can observe how each circuit contributes to daily energy totals, identify \"energy vampires\" like idle electronics or aging devices, and explore targets for smarter scheduling.\u003c\/p\u003e\n\u003cp\u003eCoupled with Home Assistant or other automations, the system can help you choreograph energy flow in line with solar availability and utility rates. While individual results vary, users often discover patterns that support more intentional consumption and potentially lower electricity costs over time.\u003c\/p\u003e\n\n\u003ch3\u003eWhy choose Refoss\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrivacy-first, local data storage with optional cloud-enabled capabilities through Open API and Web UI.\u003c\/li\u003e\n\u003cli\u003eOpen ecosystem: easy integration with Home Assistant and other platforms for customized automations.\u003c\/li\u003e\n\u003cli\u003eComprehensive historical data and export options to support audits, planning, and optimization efforts.\u003c\/li\u003e\n\u003cli\u003eReliable hardware with ETL certification, a two-year warranty, and a design that accommodates future expansions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What can the Refoss Energy Monitor measure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Tracks 18 circuits with ±1% precision, showing real-time usage and highlighting high-consumption appliances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is data stored locally or in the cloud?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Data stays local by default via the built-in UI and API; cloud access is optional via Open API and MQTT.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Refoss","offers":[{"title":"Default Title","offer_id":53089345273967,"sku":"B0FQ9ZNKBL","price":220.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0598\/3087\/files\/refoss-energy-monitor-front-view.jpg?v=1778688794","url":"https:\/\/taskholt.com\/products\/refoss-smart-home-energy-monitor-real-time-usage-18-circuits-local-data-open-api","provider":"TaskHolt","version":"1.0","type":"link"}