{"product_id":"st490-multifunction-power-meter","title":"ST490 Multifunction Power Meter | Digital Energy Analyzer","description":"\u003ch2\u003eST490 Multifunction Power Meter\u003c\/h2\u003e\u003cp\u003eThe ST490 series is a three-phase multifunction power meter featuring high-resolution color LCD display with comprehensive measurement, analysis, and monitoring capabilities.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull three-phase electrical parameter measurement (voltage, current, power, energy)\u003c\/li\u003e\n\u003cli\u003eHigh-resolution color LCD display\u003c\/li\u003e\n\u003cli\u003eRS485 communication with Modbus-RTU protocol\u003c\/li\u003e\n\u003cli\u003eOptional 4\/6 unpowered switch inputs\u003c\/li\u003e\n\u003cli\u003e4 relay outputs for alarm or control\u003c\/li\u003e\n\u003cli\u003e1 analog output (4–20mA)\u003c\/li\u003e\n\u003cli\u003eHarmonic analysis function\u003c\/li\u003e\n\u003cli\u003eOptional second communication port\u003c\/li\u003e\n\u003cli\u003eDIN rail mountable, compact design\u003c\/li\u003e\n\u003cli\u003eOEM\/ODM available — Suzhou manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eIdeal for power distribution panels, energy management systems, building automation, and industrial monitoring applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRequest a quote or technical datasheet — contact Wanlong Electric today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Wan Long Electric Group Co., Ltd.","offers":[{"title":"Default Title","offer_id":43907638165570,"sku":null,"price":1500.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/ST490-6.jpg?v=1782958406","url":"https:\/\/wanlongelectric.com\/zh\/products\/st490-multifunction-power-meter","provider":"Wan Long Electric Group Co., Ltd.","version":"1.0","type":"link"}