{"product_id":"gsm-gate-opener-remote-relay-switch-call-sms-command","title":"GSM Gate Opener Remote Switch – Call \u0026 SMS Control 850–1900MHz","description":"\n\u003ch2\u003eGSM Gate Opener Remote Switch – Control Your Gate from Anywhere\u003c\/h2\u003e\n\u003cp\u003eTake full control of your gate or door remotely with this \u003cstrong\u003eGSM Relay Switch Gate Opener\u003c\/strong\u003e. Simply insert a SIM card, register authorized phone numbers, and open or close your gate with a free phone call or SMS — no internet required. Works on all four major GSM bands (850\/900\/1800\/1900MHz), making it compatible with GSM networks worldwide.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuad-Band GSM Compatibility:\u003c\/strong\u003e Supports 850\/900\/1800\/1900MHz — works on virtually any GSM network globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree Call Activation:\u003c\/strong\u003e The relay answers on the first ring from an authorized number, triggering the ON\/OFF action at zero call cost.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMS Command Control:\u003c\/strong\u003e Send a simple SMS text command to toggle the relay switch ON or OFF remotely.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthorized Number Security:\u003c\/strong\u003e Only pre-registered phone numbers can trigger the relay — keeping your access secure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application:\u003c\/strong\u003e Compatible with electric gate openers, door locks, garage doors, lights, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Approx. 3.23\" form factor makes it easy to install in tight control enclosures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Setup:\u003c\/strong\u003e Ready to configure right out of the box — no specialist tools required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eInsert a standard GSM SIM card into the device.\u003c\/li\u003e\n  \u003cli\u003eRegister up to the allowed number of authorized phone numbers via SMS.\u003c\/li\u003e\n  \u003cli\u003eCall or text the device's SIM number from an authorized phone.\u003c\/li\u003e\n  \u003cli\u003eThe relay switches ON\/OFF instantly — opening or closing your gate or door.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGSM Bands:\u003c\/strong\u003e 850 \/ 900 \/ 1800 \/ 1900 MHz (Quad-Band)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Methods:\u003c\/strong\u003e Free phone call (first ring) \u0026amp; SMS command\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelay Output:\u003c\/strong\u003e ON \/ OFF switching\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. 3.23\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHome driveways \u0026amp; electric gates\u003c\/li\u003e\n  \u003cli\u003eGarage door automation\u003c\/li\u003e\n  \u003cli\u003eCommercial property access control\u003c\/li\u003e\n  \u003cli\u003eRemote switching of lights or other devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads DIY Jewelry Making\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/gold-silver-drawstring-jewelry-gift-bags-pouches-50pcs\"\u003e50pcs Gold \u0026amp; Silver Drawstring Jewelry Gift Bags\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/natural-stone-abacus-beads-flat-round-spacer-diy-jewelry-making\"\u003eNatural Stone Abacus Beads 5x8mm Flat Round Spacer for DIY Jewelry\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What GSM frequency bands does this gate opener remote switch support?\u003c\/h4\u003e\n\u003cp\u003eA: The GSM Gate Opener Remote Switch supports all four major GSM bands — 850, 900, 1800, and 1900MHz — making it a true quad-band device that works with GSM networks worldwide. Just insert a compatible SIM card and you're ready to go.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the free-call activation feature work on this GSM relay switch?\u003c\/h4\u003e\n\u003cp\u003eA: When you call the SIM number installed in the device from a pre-authorized phone number, the relay answers on the very first ring and immediately executes the ON\/OFF switching action. Because the call is answered and dropped at the first ring, no call charges are incurred — making it a completely free trigger.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I control the GSM gate opener switch via SMS as well as phone calls?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. In addition to free-call activation, you can send a simple SMS command to the device's SIM number to toggle the relay ON or OFF. This gives you two convenient remote-control methods to suit your preference or network conditions.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this GSM relay switch secure — can unauthorized users trigger it?\u003c\/h4\u003e\n\u003cp\u003eA: Security is built in. Only phone numbers that have been pre-registered as \"authorized\" can trigger the relay. Calls or SMS messages from unregistered numbers are ignored, ensuring that only you and your approved contacts can operate the gate or door.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What GSM frequency bands does this gate opener remote switch support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The GSM Gate Opener Remote Switch supports all four major GSM bands — 850, 900, 1800, and 1900MHz — making it a true quad-band device that works with GSM networks worldwide. Just insert a compatible SIM card and you're ready to go.\"}}, {\"@type\": \"Question\", \"name\": \"How does the free-call activation feature work on this GSM relay switch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"When you call the SIM number installed in the device from a pre-authorized phone number, the relay answers on the very first ring and immediately executes the ON\/OFF switching action. Because the call is answered and dropped at the first ring, no call charges are incurred — making it a completely free trigger.\"}}, {\"@type\": \"Question\", \"name\": \"Can I control the GSM gate opener switch via SMS as well as phone calls?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. In addition to free-call activation, you can send a simple SMS command to the device's SIM number to toggle the relay ON or OFF. This gives you two convenient remote-control methods to suit your preference or network conditions.\"}}, {\"@type\": \"Question\", \"name\": \"Is this GSM relay switch secure — can unauthorized users trigger it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Security is built in. Only phone numbers that have been pre-registered as \\\"authorized\\\" can trigger the relay. Calls or SMS messages from unregistered numbers are ignored, ensuring that only you and your approved contacts can operate the gate or door.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"GSM Gate Opener Remote Switch – Call \u0026 SMS Control 850–1900MHz\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/gsm-gate-opener-remote-relay-switch-call-sms-command\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"Blue","offer_id":54265150406966,"sku":"14:173","price":81.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/Se87a6580319442f098eb265a381123c8p.webp?v=1784714714","url":"https:\/\/zpaxo.com\/products\/gsm-gate-opener-remote-relay-switch-call-sms-command","provider":"Zpaxo","version":"1.0","type":"link"}