{"product_id":"to-q-sys-jwt","title":"Wi-Fi Smart Energy Meter with Remote Control","description":"\u003carticle class=\"smfy-catalog-v5\" data-smartify-theme=\"adaptive-v1\" lang=\"en\" dir=\"ltr\"\u003e\u003cnav class=\"sd-nav\"\u003e\u003ca href=\"#smfy-10377193128234-en-overview\"\u003eOverview\u003c\/a\u003e\u003ca href=\"#smfy-10377193128234-en-energy\"\u003eEnergy tools\u003c\/a\u003e\u003ca href=\"#smfy-10377193128234-en-control\"\u003eControl\u003c\/a\u003e\u003ca href=\"#smfy-10377193128234-en-specifications\"\u003eSpecifications\u003c\/a\u003e\u003ca href=\"#smfy-10377193128234-en-setup\"\u003eSetup and limits\u003c\/a\u003e\u003ca href=\"#smfy-10377193128234-en-faq\"\u003eQuestions\u003c\/a\u003e\u003c\/nav\u003e\u003cdiv class=\"sd-intro\" id=\"smfy-10377193128234-en-overview\" tabindex=\"-1\"\u003e\u003ch2\u003eUnderstand one circuit, then control how it runs\u003c\/h2\u003e\u003cp\u003eThis Wi-Fi DIN-rail switch combines circuit on\/off control, a colour LCD and electricity monitoring in one compact unit. Check what a suitable circuit is using, compare consumption over time and arrange operating hours through Smart Life or Tuya Smart.\u003c\/p\u003e\u003cp\u003eAt the distribution board, the screen and three buttons provide a local way to read measurements and manage device functions without opening your phone. This is the Wi-Fi TO-Q-SYS-JWT version, not the Zigbee or local-only version.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sd-features\"\u003e\u003csection data-connectivity=\"wifi\"\u003e\u003csvg fill=\"none\" stroke=\"#65afe5\" stroke-width=\"3\" stroke-linecap=\"round\" stroke-linejoin=\"round\" viewbox=\"0 0 100 100\" aria-hidden=\"true\" focusable=\"false\"\u003e\u003cpath d=\"M12 35a57 57 0 0 1 76 0M25 50a38 38 0 0 1 50 0M38 65a19 19 0 0 1 24 0\"\u003e\u003c\/path\u003e\u003ccircle cx=\"50\" cy=\"80\" r=\"3\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003ch3\u003eDirect 2.4 GHz Wi-Fi\u003c\/h3\u003e\u003cp\u003eConnects to a 2.4 GHz router without a Zigbee hub. Away-from-site control requires working Wi-Fi and internet access.\u003c\/p\u003e\u003c\/section\u003e\u003csection data-app=\"smart-life-tuya\"\u003e\u003csvg fill=\"none\" stroke=\"#65afe5\" stroke-width=\"3\" stroke-linecap=\"round\" stroke-linejoin=\"round\" viewbox=\"0 0 100 100\" aria-hidden=\"true\" focusable=\"false\"\u003e\u003crect x=\"26\" y=\"8\" width=\"48\" height=\"84\" rx=\"8\"\u003e\u003c\/rect\u003e\u003cpath d=\"M40 18h20M42 82h16M36 48h28\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003ch3\u003eSmart Life \/ Tuya Smart\u003c\/h3\u003e\u003cp\u003eUse the Android or iOS app for on\/off control, energy information and settings, with supported Alexa and Google Assistant voice integration.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003csvg fill=\"none\" stroke=\"#65afe5\" stroke-width=\"3\" stroke-linecap=\"round\" stroke-linejoin=\"round\" viewbox=\"0 0 100 100\" aria-hidden=\"true\" focusable=\"false\"\u003e\u003crect x=\"15\" y=\"15\" width=\"70\" height=\"55\" rx=\"5\"\u003e\u003c\/rect\u003e\u003cpath d=\"M35 85h30M50 70v15M27 54l14-15 15 8 17-20\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003ch3\u003eColour LCD and local buttons\u003c\/h3\u003e\u003cp\u003eView voltage, current, power and energy locally. Three buttons provide switching and settings without Wi-Fi.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003csvg fill=\"none\" stroke=\"#65afe5\" stroke-width=\"3\" stroke-linecap=\"round\" stroke-linejoin=\"round\" viewbox=\"0 0 100 100\" aria-hidden=\"true\" focusable=\"false\"\u003e\u003ccircle cx=\"50\" cy=\"50\" r=\"37\"\u003e\u003c\/circle\u003e\u003cpath d=\"M50 25v27l18 12M50 13v5M50 82v5M13 50h5M82 50h5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003ch3\u003eSchedules and energy history\u003c\/h3\u003e\u003cp\u003eUse schedules, sunrise\/sunset timing or cycle timing, then compare consumption across hours, days, months and years.\u003c\/p\u003e\u003c\/section\u003e\u003c\/div\u003e\u003csection class=\"sd-use\" id=\"smfy-10377193128234-en-energy\" tabindex=\"-1\"\u003e\u003ch3\u003eEnergy information you can act on\u003c\/h3\u003e\u003cp\u003eMonitor voltage, current, power and accumulated electricity use. The device also reports its internal temperature; this is a device reading, not a room-temperature sensor. Energy monitoring is for forward\/import AC electricity. The screen also shows frequency, power factor, time, day and date; these are display readings, not a power-factor correction function.\u003c\/p\u003e\u003cp\u003eHourly, daily, monthly and yearly views can help compare busy days with quiet days, or check whether a schedule change actually reduces consumption. Export consumption data by email for your own records and analysis. Energy-clearing controls are available when you deliberately want to begin a new tracking period; review existing records before resetting the total.\u003c\/p\u003e\u003ch3\u003eRemaining-energy balance and prepaid tools\u003c\/h3\u003e\u003cp\u003eThe app includes a remaining-energy balance, energy top-up, recharge records, a prepayment switch and remaining-energy reset. These can help manage an internal kWh allowance for a room, workshop or separately monitored circuit.\u003c\/p\u003e\u003cp\u003eThese are energy-balance tools, not a promised bank-payment gateway or certified utility-billing service. Do not assume automatic money collection, local-tariff calculation or approval to replace a legally required billing meter.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"sd-use\" id=\"smfy-10377193128234-en-control\" tabindex=\"-1\"\u003e\u003ch3\u003eApp, local controls and display settings\u003c\/h3\u003e\u003cp\u003eSwitch through Smart Life or Tuya Smart, or use supported Amazon Alexa and Google Assistant integration for voice on\/off control. Remote use depends on a powered device, network and service availability; voice functions also require the relevant supported linked accounts.\u003c\/p\u003e\u003cp\u003eChoose ordinary schedules, sunrise\/sunset timing or cycle timing for compatible loads. A schedule does not make every appliance suitable for unattended operation or automatic restart.\u003c\/p\u003e\u003ch3\u003eUseful without opening your phone\u003c\/h3\u003e\u003cp\u003eThe three physical buttons provide local switching and access to parameter and function settings without Wi-Fi. A configurable password helps limit unintended local setting changes; it is not a blanket network-security guarantee.\u003c\/p\u003e\u003cp\u003eThe colour LCD offers five brightness levels, a screen-off option and reversible display orientation to make readings easier to view. Display reversal does not replace the installation instructions or the electrician’s assessment.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"sd-use\" id=\"smfy-10377193128234-en-protection\" tabindex=\"-1\"\u003e\u003ch3\u003eConfigurable monitoring and relay response\u003c\/h3\u003e\u003cp\u003eElectronic functions cover overcurrent, overvoltage, undervoltage, overpower and high internal\/CPU temperature. Documented settings include disabling a function, raising an alarm or opening the relay when the configured condition occurs. The correct settings depend on the actual circuit and load; values in supplier screenshots are examples, not recommended defaults.\u003c\/p\u003e\u003cp\u003eAutomatic reclosing can be configured for voltage-recovery operation. The installer must decide whether automatic restart is suitable for the connected equipment. Available menus and additional reclosing options can differ by firmware; verify the installed device before relying on a particular restart sequence.\u003c\/p\u003e\u003cdiv class=\"sd-notice\"\u003eThis smart relay switch and energy-monitoring device has no short-circuit protection and does not replace the circuit’s required protective breaker. Use appropriate separate protection selected by a qualified electrician. No earth-leakage\/RCD function is claimed for this model.\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"sd-use\" id=\"smfy-10377193128234-en-uses\" tabindex=\"-1\"\u003e\u003ch3\u003ePractical uses, with the right load assessment\u003c\/h3\u003e\u003cp\u003eThese are practical applications of the verified monitoring, scheduling and switching functions—not guarantees that every appliance is compatible.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eA suitable resistive heating circuit: observe a water heater’s or another approved resistive load’s consumption and compare sensible operating windows. Appliance controls, protective devices and manufacturer instructions still apply; no fixed saving percentage is promised.\u003c\/li\u003e\u003cli\u003eHome or shop lighting: align compatible lights with opening hours, daily routines or sunrise\/sunset. LED driver characteristics and starting current must be assessed, not just the displayed wattage.\u003c\/li\u003e\u003cli\u003eA dedicated room or workshop circuit: compare usage across days and retain exported records instead of guessing from the whole-building bill. Remaining-kWh tools can support an internal allowance without implying certified tenant billing.\u003c\/li\u003e\u003cli\u003eLocal checks during a network outage: read the LCD and use the physical buttons. Remote app and voice services cannot be assumed to work without their network connections.\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003cdiv class=\"sd-specs\" id=\"smfy-10377193128234-en-specifications\" tabindex=\"-1\"\u003e\u003csection\u003e\u003ch3\u003eElectrical and connection details\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eModel\u003c\/th\u003e\u003ctd\u003eTO-Q-SYS-JWT\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eConnection\u003c\/th\u003e\u003ctd\u003eWi-Fi 2.4 GHz; IEEE 802.11 b\/g\/n\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eApp\u003c\/th\u003e\u003ctd\u003eSmart Life \/ Tuya Smart; Android and iOS\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eRated operating voltage\u003c\/th\u003e\u003ctd\u003eAC 90–240 V\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eFrequency\u003c\/th\u003e\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eMaximum current\u003c\/th\u003e\u003ctd\u003e50 A; AC-1 resistive-load application\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eCurrent setting\u003c\/th\u003e\u003ctd\u003e1–50 A; not an all-load compatibility guarantee\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection\u003e\u003ch3\u003eDevice and installation format\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eSwitching arrangement\u003c\/th\u003e\u003ctd\u003e1P+N; switched line L, direct unswitched neutral N\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eRelay\u003c\/th\u003e\u003ctd\u003eLatching relay\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eMounting\u003c\/th\u003e\u003ctd\u003e35 mm DIN rail\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eDevice dimensions\u003c\/th\u003e\u003ctd\u003e18 mm wide × 66 mm deep × 82 mm high\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eDisplay\u003c\/th\u003e\u003ctd\u003eColour LCD; five brightness levels; reversible orientation\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eLocal controls\u003c\/th\u003e\u003ctd\u003eThree buttons; configurable settings password\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003cth scope=\"row\"\u003eEnergy direction\u003c\/th\u003e\u003ctd\u003eForward\/import AC electricity\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003c\/div\u003e\u003csection class=\"sd-use\" id=\"smfy-10377193128234-en-setup\" tabindex=\"-1\"\u003e\u003ch3\u003eBefore installation and setup\u003c\/h3\u003e\u003cdiv class=\"sd-notice\"\u003eQualified electrical installation is required. Neutral is necessary and remains connected when the relay is off. An app’s off state is not safe electrical isolation. Never work on live wiring.\u003c\/div\u003e\u003cp\u003eThe 50 A maximum applies to the stated AC-1 resistive-load application, not automatically to motors, compressors or every LED driver. For LED loads, the exact seller documentation specifies both current no higher than 16 A and total power no higher than 4000 W. Operating voltage, inrush and the installation must also be suitable; 4000 W is not available at every voltage simply because it appears in that limit.\u003c\/p\u003e\u003col\u003e\u003cli\u003eHave a qualified electrician assess the actual load, required separate protection and suitable distribution enclosure, and follow the matching installation manual.\u003c\/li\u003e\u003cli\u003eProvide usable 2.4 GHz Wi-Fi at the board and install Smart Life or Tuya Smart on your phone.\u003c\/li\u003e\u003cli\u003eUse the device’s network-configuration menu and current password, then follow Add Device in the app with the correct network credentials. Use the Wi-Fi JWT guide, not instructions for the Zigbee or local-only version.\u003c\/li\u003e\u003cli\u003eCheck the circuit name and readings. Have the installer review thresholds and restart behaviour before configuring your preferred schedules, history tools and optional voice integration.\u003c\/li\u003e\u003c\/ol\u003e\u003c\/section\u003e\u003csection class=\"sd-faq\" id=\"smfy-10377193128234-en-faq\" tabindex=\"-1\"\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch3\u003eDoes it need a Zigbee hub?\u003c\/h3\u003e\u003cp\u003eNo. This Wi-Fi version connects directly to a 2.4 GHz router. A Zigbee version is a different model.\u003c\/p\u003e\u003ch3\u003eWhat works without Wi-Fi?\u003c\/h3\u003e\u003cp\u003eThe LCD and physical buttons provide local readings, switching and settings. Offline Bluetooth phone control has not been confirmed for this stock, so it is not promised here.\u003c\/p\u003e\u003ch3\u003eDoes it replace a breaker or disconnect both conductors?\u003c\/h3\u003e\u003cp\u003eNo. It has no short-circuit protection and needs appropriate separate circuit protection. It switches line L; neutral N remains directly connected.\u003c\/p\u003e\u003ch3\u003eCan it measure solar export or provide certified billing?\u003c\/h3\u003e\u003cp\u003eThis listing confirms forward\/import AC energy monitoring and energy-balance tools, not separate export\/net-metering measurements or revenue-grade billing approval.\u003c\/p\u003e\u003ch3\u003eWill every screenshot and menu look identical?\u003c\/h3\u003e\u003cp\u003eApp screens, firmware options and sample values can differ. Confirm the settings available on the installed device; do not treat illustration values as its factory defaults or rated limits.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"sd-faq\"\u003e\u003ch3\u003eManufacturer documents and pairing guide\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.chayo.tech\/wp-content\/uploads\/2024\/08\/TO-Q-SYS-Din-Rail-Smart-Meter-Manaul-Tongou.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTO-Q-SYS manufacturer operating manual (PDF)\u003c\/a\u003e — Multi-variant manual. Use the Wi-Fi JWT sections; functions can vary by firmware.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/tongou.com\/wp-content\/uploads\/2024\/04\/Din-Rail-Smart-Meter-TO-Q-SYS-Series.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTO-Q-SYS series technical data (PDF)\u003c\/a\u003e — Series reference. Match the exact variant and follow the device’s own electrical label.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.chayo.tech\/wp-content\/uploads\/2024\/11\/TO-Q-SYS-JWT-Network-Pairing-Guide.mp4\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eManufacturer Wi-Fi JWT pairing demonstration\u003c\/a\u003e — App demonstration; screens may differ by app and device revision.\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e\u003cstyle\u003e.smfy-catalog-v5{--ink:#20313e;--muted:#586c79;--surface:#fff;--line:#dce7ee;--accent:#65afe5;--notice:#fff9e8;color:var(--ink);background:var(--surface);width:100%;max-width:none;padding:20px 12px;box-sizing:border-box;font-size:16px;line-height:1.8;font-family:inherit;overflow-wrap:anywhere}\n.smfy-catalog-v5 *{box-sizing:border-box}.smfy-catalog-v5 h2,.smfy-catalog-v5 h3,.smfy-catalog-v5 p{color:inherit;margin:0 0 12px}.smfy-catalog-v5 h2,.smfy-catalog-v5 h3{font-weight:500;line-height:1.5}.smfy-catalog-v5 bdi{unicode-bidi:isolate}.smfy-catalog-v5 .sd-intro{text-align:center;padding:24px 0 28px}.smfy-catalog-v5 .sd-intro h2{font-size:clamp(28px,3vw,42px);max-width:850px;margin:0 auto 18px}.smfy-catalog-v5 .sd-intro p{max-width:1000px;margin:0 auto;color:var(--muted);font-size:18px}.smfy-catalog-v5 .sd-nav{display:flex;flex-wrap:wrap;gap:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;margin:0 0 16px}.smfy-catalog-v5 .sd-nav a{color:var(--muted);text-decoration:none;font-size:16px;line-height:1.8;padding:4px 0;border-bottom:2px solid transparent}.smfy-catalog-v5 .sd-nav a:hover,.smfy-catalog-v5 .sd-nav a:focus-visible{color:var(--ink);border-bottom-color:var(--accent)}.smfy-catalog-v5 .sd-nav a:focus-visible{outline:2px solid var(--ink);outline-offset:5px}.smfy-catalog-v5 [id]{scroll-margin-top:100px}.smfy-catalog-v5 [tabindex=\"-1\"]:focus-visible{outline:2px solid var(--ink);outline-offset:6px}.smfy-catalog-v5 .sd-features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;max-width:1000px;margin:0 auto;padding:20px 0 36px}.smfy-catalog-v5 .sd-features section{text-align:center;background:none;border:0;padding:0}.smfy-catalog-v5 .sd-features svg{display:block;width:76px;height:76px;margin:0 auto 18px;stroke:var(--accent);fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.smfy-catalog-v5 .sd-features h3{font-size:20px;margin-bottom:8px}.smfy-catalog-v5 .sd-features p{font-size:16px;color:var(--muted);margin:0}.smfy-catalog-v5 .sd-use{max-width:760px;margin:0 auto;padding:12px 0 24px}.smfy-catalog-v5 .sd-use h3{font-size:23px}.smfy-catalog-v5 .sd-use p{color:var(--muted)}.smfy-catalog-v5 .sd-specs{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin:20px 0}.smfy-catalog-v5 .sd-specs h3{font-size:23px}.smfy-catalog-v5 table{width:100%;border-collapse:collapse;table-layout:fixed}.smfy-catalog-v5 th,.smfy-catalog-v5 td{border:0;border-bottom:1px solid var(--line);padding:10px 6px;text-align:start;font-size:14px;vertical-align:top;word-break:normal}.smfy-catalog-v5 th{font-weight:500;width:45%}.smfy-catalog-v5 td{color:var(--muted)}.smfy-catalog-v5 .sd-requirements{color:var(--muted);margin-bottom:16px}.smfy-catalog-v5 .sd-notice{padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--notice);font-size:14px}.smfy-catalog-v5 .sd-faq{border-top:1px solid var(--line);margin-top:20px;padding-top:20px}.smfy-catalog-v5 .sd-faq h3{font-size:19px}.smfy-catalog-v5 .sd-faq p{color:var(--muted)}\n@media(max-width:749px){.smfy-catalog-v5{padding:12px 6px}.smfy-catalog-v5 .sd-intro{padding:16px 0 20px}.smfy-catalog-v5 .sd-intro h2{font-size:28px}.smfy-catalog-v5 .sd-intro p{font-size:16px}.smfy-catalog-v5 .sd-features{grid-template-columns:1fr;gap:24px;padding:16px 0 28px}.smfy-catalog-v5 .sd-features svg{width:64px;height:64px;margin-bottom:12px}.smfy-catalog-v5 .sd-features h3{font-size:19px}.smfy-catalog-v5 .sd-features p{max-width:420px;margin:auto}.smfy-catalog-v5 .sd-specs{grid-template-columns:1fr;gap:24px}.smfy-catalog-v5 .sd-use h3,.smfy-catalog-v5 .sd-specs h3{font-size:21px}}\n@media(prefers-color-scheme:dark){.smfy-catalog-v5{--ink:#f2f6fa;--muted:#c1ced8;--surface:#121b26;--line:#34495c;--accent:#8fcaf1;--notice:#302b1b}}\n.smfy-catalog-v5 .sd-features svg.brand-mark{stroke:none;fill:var(--accent)}\u003c\/style\u003e","brand":"TONGOU \/ CHAYO","offers":[{"title":"Default Title","offer_id":53081535054122,"sku":"SMFY-TO-Q-SYS-JWT","price":44000.0,"currency_code":"IQD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/7504\/9002\/files\/TO-Q-SYS-JWT-1Tuya_smart_meter_with_lcd_display_chayo_1.webp?v=1792685435","url":"https:\/\/smartifyiq.com\/en\/products\/to-q-sys-jwt","provider":"SMARTIFY","version":"1.0","type":"link"}