{"product_id":"4g-lte-sm4-gsm-relay-controller-sms-temperature-humidity-sensor-remote-control-smart-switch-automation-for-gate-home-appliance","title":"4G LTE SM4 GSM Relay Controller SMS Temperature Humidity Sensor Remote Control Smart Switch Automation for Gate Home Appliance","description":"\u003cdiv style=\"font-family:Arial, Helvetica, sans-serif; line-height:1.6; letter-spacing:0.02em; color:#222; font-size:14px;\"\u003e\n\n  \u003c!-- ATTENTION: TITLE + HOOK --\u003e\n  \u003ch1 style=\"font-size:22px; margin:0 0 10px 0; line-height:1.3;\"\u003e\n    4G LTE SM4 GSM Relay Controller – Smart SMS Temperature \u0026amp; Humidity Remote Switch for Gates \u0026amp; Home Appliances\n  \u003c\/h1\u003e\n\n  \u003cp style=\"margin:0 0 14px 0; max-width:900px;\"\u003e\n    Imagine opening your gate, starting a pump, or keeping your greenhouse at the perfect temperature – all from miles away, even where there’s no Wi‑Fi.  \n    The KONLEN 4G LTE SM4 GSM Relay Controller turns any compatible device into a smart, remotely controlled system using 4G, SMS, and calls.  \n    Whether you manage a farm, a workshop, a server room, or just want smarter home control, this compact aluminum box gives you reliable, always‑connected power over your equipment.\n  \u003c\/p\u003e\n\n  \u003c!-- INTEREST: KEY BENEFITS \/ FEATURES --\u003e\n  \u003ch2 style=\"font-size:18px; margin:18px 0 8px 0;\"\u003e⭐ Key Benefits \u0026amp; Smart Features\u003c\/h2\u003e\n\n  \u003cul style=\"margin:0 0 16px 18px; padding:0; max-width:900px;\"\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003e4G LTE control anywhere – no Wi‑Fi needed\u003c\/strong\u003e\u003cbr\u003e\n      Use a local 4G SIM card and control your devices from virtually any location with 4G coverage – perfect for remote gates, pumps, greenhouses, and off‑grid sites.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eMultiple control options: App, SMS, Call \u0026amp; Web\u003c\/strong\u003e\u003cbr\u003e\n      Turn relays ON\/OFF via the WLTE Control app, SMS commands, authorized phone calls, or a PC web browser for flexible, user‑friendly operation.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003e4 independent relay outputs (SM4)\u003c\/strong\u003e\u003cbr\u003e\n      Control up to four devices separately – such as gate, lights, pump, and fan – from one compact controller. (SM1 version has 1 relay output.)\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eBuilt‑in temperature \u0026amp; humidity automation\u003c\/strong\u003e\u003cbr\u003e\n      Two sensor ports let you connect temperature or temperature‑humidity sensors. Set upper\/lower limits to automatically switch relays for cooling, heating, humidifying, or dehumidifying.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003ePerfect for gates \u0026amp; garage doors\u003c\/strong\u003e\u003cbr\u003e\n      Inching mode briefly toggles the relay, simulating a button press – ideal for electric doors, gates, and garage openers.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eScheduled \u0026amp; timed control\u003c\/strong\u003e\u003cbr\u003e\n      Create schedules to turn devices on or off at specific times – great for lighting, irrigation, or energy‑saving routines.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eReal‑time monitoring \u0026amp; alerts\u003c\/strong\u003e\u003cbr\u003e\n      View live temperature and humidity in the app and receive push notifications when values go above or below your preset limits.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eUp to 99 authorized call numbers\u003c\/strong\u003e\u003cbr\u003e\n      Add trusted phone numbers that can control the device by calling – ideal for family members, staff, or maintenance teams.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eDurable aluminum alloy housing\u003c\/strong\u003e\u003cbr\u003e\n      Robust metal enclosure with external SMA antenna for stable signal and long‑term use in technical rooms, workshops, and outdoor control boxes.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003e\n      \u003cstrong\u003eTop‑rated \u0026amp; user‑friendly\u003c\/strong\u003e\u003cbr\u003e\n      Designed for general consumers and professionals alike, with clear app interface, simple wiring diagrams, and reliable performance in demanding environments.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- USE CASES \/ STORY --\u003e\n  \u003ch2 style=\"font-size:18px; margin:18px 0 8px 0;\"\u003e🚀 Real‑World Uses – From Home to Industry\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 10px 0; max-width:900px;\"\u003e\n    Picture driving up to your property and opening the gate with a quick call.  \n    Or keeping a greenhouse at the perfect 24°C and 60% humidity without being on site.  \n    The SM4 was created for people who need reliable control where Wi‑Fi can’t reach – farmers, small business owners, IT admins, and homeowners who want peace of mind.\n  \u003c\/p\u003e\n\n  \u003cul style=\"margin:0 0 16px 18px; padding:0; max-width:900px;\"\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003eRemote gates, garage doors, and barriers\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003eWater pumps, irrigation systems, and wells\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003eGreenhouses, breweries, and storage rooms\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003eServer rooms, routers, PBX switchboards\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003ePower distribution rooms and technical cabinets\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin:0 0 16px 0; max-width:900px;\"\u003e\n    With temperature and humidity sensors connected, you can \u003cstrong\u003efeel\u003c\/strong\u003e the difference: cooler rooms when heat builds up, fresher air when humidity rises, and equipment that runs only when it truly needs to – saving energy and extending its life.\n  \u003c\/p\u003e\n\n  \u003c!-- DETAILED FEATURES --\u003e\n  \u003ch2 style=\"font-size:18px; margin:18px 0 8px 0;\"\u003e🔧 Detailed Feature Highlights\u003c\/h2\u003e\n\n  \u003cul style=\"margin:0 0 16px 18px; padding:0; max-width:900px;\"\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eTwo control modes\u003c\/strong\u003e:  \n      4G data mode (via WLTE Control app \u0026amp; web) and SMS mode (via text messages \u0026amp; calls).\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eAPN configuration\u003c\/strong\u003e:  \n      For some carriers, simply set APN once in the app to activate 4G data.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eInching mode\u003c\/strong\u003e:  \n      Short pulse output to simulate a push button – ideal for momentary control.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eCentralized management\u003c\/strong\u003e:  \n      Manage multiple controllers in one app – perfect for multi‑site operations.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eApp push notifications\u003c\/strong\u003e:  \n      Optional alerts when temperature\/humidity cross your thresholds.\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eWeb browser control\u003c\/strong\u003e:  \n      Send ON\/OFF commands from a PC (settings and notifications managed via app).\n    \u003c\/li\u003e\n    \u003cli style=\"margin:0 0 6px 0;\"\u003e\n      \u003cstrong\u003eFlexible wiring\u003c\/strong\u003e:  \n      Supports DC motors, AC bulbs\/LEDs, and other loads within relay ratings; high‑power motors can be controlled via an external AC contactor.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- SPECIFICATIONS TABLE --\u003e\n  \u003ch2 style=\"font-size:18px; margin:18px 0 8px 0;\"\u003e📊 Technical Specifications\u003c\/h2\u003e\n\n  \u003ctable style=\"border-collapse:collapse; width:100%; max-width:900px; margin:0 0 18px 0; font-size:13px;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:8px; font-weight:bold; width:30%;\"\u003eModel Options\u003c\/td\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eSM1 (1 relay output), SM4 (4 relay outputs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:8px; font-weight:bold;\"\u003eNetwork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"KONLEN KLN Store","offers":[{"title":"SM4 with 2 temp","offer_id":48452095082737,"sku":"12000028370766041","price":466.05,"currency_code":"CAD","in_stock":true},{"title":"SM4 with 1 Temp Hum","offer_id":48452095115505,"sku":"12000028370766040","price":460.03,"currency_code":"CAD","in_stock":true},{"title":"SM4 with 2 Temp Hum","offer_id":48452095148273,"sku":"12000028370766042","price":508.07,"currency_code":"CAD","in_stock":true},{"title":"SM1","offer_id":48452095181041,"sku":"12000028370766037","price":315.88,"currency_code":"CAD","in_stock":true},{"title":"SM4 with 1 Temp","offer_id":48452095213809,"sku":"12000028370766039","price":438.04,"currency_code":"CAD","in_stock":true},{"title":"SM4","offer_id":48452095246577,"sku":"12000028370766038","price":404.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/7342\/4113\/files\/Sed3bac36f49248029cac355f53ccb956h.webp?v=1785282338","url":"https:\/\/netcoresupply.com\/ro\/products\/4g-lte-sm4-gsm-relay-controller-sms-temperature-humidity-sensor-remote-control-smart-switch-automation-for-gate-home-appliance","provider":"NetCore Supply","version":"1.0","type":"link"}