{"product_id":"sonoff-smart-stackable-power-meter","title":"SONOFF Smart Power Meter with 20A Monitoring \u0026 Overload Protection","description":"\u003cp\u003eThe SONOFF Smart Stackable Power Meter (SPM) is a powerful tool for tracking and managing your energy use. It monitors power consumption in real time, protects against overloads, and gives you smart control over your electricity. It's a great fit for rental properties, commercial buildings, and high-power appliances. You get reliable monitoring with both local storage and remote access through the eWeLink app.\u003c\/p\u003e\n\u003cp\u003eThe SPM makes energy tracking simple. It records your real-time power usage and saves historical data, so you can review consumption trends right from the app. Built-in overload protection keeps your appliances safe by preventing overheating and short circuits. Each channel handles up to 20A, which makes it ideal for heavy-duty equipment like industrial machines, mining rigs, and high-power electronics.\u003c\/p\u003e\n\u003cp\u003eNeed to monitor more? The system is fully expandable. Using RS-485 communication, one SPM-Main can control up to 32 SPM-4Relay units, giving you a total of 128 isolated power channels. A microSD card (8GB to 32GB) stores up to 180 days of energy data for easy review. And with Wi-Fi or Ethernet, you can check live stats, power logs, and settings from anywhere.\u003c\/p\u003e\n\u003cp\u003eInstallation is clean and straightforward thanks to DIN rail mounting for a professional setup. The durable PC V0 flame-retardant shell is built for safety and long-term use.\u003c\/p\u003e\n\u003cp\u003eKey specifications:\u003cbr\u003e- Model: SONOFF SPM Smart Stackable Power Meter\u003cbr\u003e- Module: SPM-4Relay\u003cbr\u003e- Voltage: 100-240V, 50\/60Hz\u003cbr\u003e- Max load per channel: 20A\u003cbr\u003e- Total max load: 80A\u003cbr\u003e- Dimensions: 250 x 90 x 66.5mm\u003cbr\u003e- Shell material: PC V0 flame-retardant\u003cbr\u003e- Communication: Wi-Fi \u0026amp; RS-485\u003cbr\u003e- Compatibility: Works with all smart home systems \u0026amp; the eWeLink app\u003cbr\u003e- Certifications: CE, FCC\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/Hbf3bd9e08f66489cb9cdfb0106de57954.webp?v=1781598671\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/Ha2231a8f5da245668c476684ef1c3c7dz.webp?v=1781598671\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H7fb2f8278d2945f4bd25b6f3aa52dc69g.webp?v=1781598671\"\u003e\u003cimg style=\"margin-bottom: 10px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H0fa4de1ec9d04dd196ba7b5c4a8dc9a1O.webp?v=1781598671\"\u003e\u003cimg style=\"margin-bottom: 10px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H8dcd4a055cc84396b122f949c591979cS.webp?v=1781598671\"\u003e\u003cimg style=\"margin-bottom: 10px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H8a89fabda76d4f4d97d79743702c8a32X.webp?v=1781598671\"\u003e\u003cimg style=\"margin-bottom: 10px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/Hf1c73148910a49dabab356a3fd047af4L.webp?v=1781598671\"\u003e\u003cimg style=\"margin-bottom: 10px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H53f8d1cf53234b9b8275d4d3a95e6b62n.webp?v=1781598671\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H75c6a37fddcf4000b5ad1eacaae14c8av.webp?v=1781598671\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H187ab045389f4f7592f90daebe631a82o.webp?v=1781598671\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H013d9a20913d49c2b3894038c66026ecS.webp?v=1781598671\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/H8a8c8180e87c419f926c3a1ccc49e6d4w.webp?v=1781598670\"\u003e\u003c\/p\u003e","brand":"SONOFF","offers":[{"title":"CHINA","offer_id":50878831165729,"sku":"1005003437985916-1PCS SPM-4Relay-CHINA","price":3757.0,"currency_code":"CZK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/1330\/0001\/files\/sonoff-smart-stackable-power-meter-20agang-energy-monitoring-overload-protection-8369284.jpg?v=1779530191","url":"https:\/\/revelsmart.com\/en-cz\/products\/sonoff-smart-stackable-power-meter","provider":"Revel Smart","version":"1.0","type":"link"}