{"id":81,"date":"2026-01-09T14:33:05","date_gmt":"2026-01-09T14:33:05","guid":{"rendered":"https:\/\/www.martin-electronics.co.za\/index.php\/product\/french-3-button-403mhz\/"},"modified":"2026-01-11T15:48:20","modified_gmt":"2026-01-11T15:48:20","slug":"french-3-button-403mhz","status":"publish","type":"product","link":"https:\/\/martin-electronics.co.za\/?product=french-3-button-403mhz","title":{"rendered":"French 3 Button (403MHz)"},"content":{"rendered":"<p>The SENTRY French 3 Button 403MHz Radio Frequency Transmitter is equipped with an internal DIP switch that facilitates the generation of the rolling code needed to generate encrypted transmissions for secure link communications between receiver and transmitter. The encrypted transmissions of the SENTRY French 3 Button are relatively resistant to code grabbing due to the fact that the learning protocol would need the user to have both transmitters in their possession to successfully clone the code.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The SENTRY French 3 Button 403MHz Radio Frequency Transmitter utilizes an internal DIP switch as a basis to generate the rolling code for its encrypted transmissions. Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. The SENTRY products that are equipped with the French modulation protocol are legacy products and many of the legacy products are forward compatible with the newer products containing embedded technology to learn the legacy code modulation protocol supporting products.<\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_brand":[18],"product_cat":[28,19],"product_tag":[],"class_list":["post-81","product","type-product","status-publish","product_brand-martin-electronics","product_cat-403-mhz-remotes","product_cat-rf-remote-transmitters","pa_gaurantee-warranty-sentry-products-are-manufactured-with-careful-consideration-to-detail-and-process-and-each-unit-is-manufactured-in-a-regulated-contaminant-free-environment-and-it-is-tested-under-strict","pa_technical-specifications-technical-specifications-and-features-carrier-frequency-403-55mhz-code-protocols-supported-french-operating-range-40m-approximately-power-source-1-x-12v-battery-a23-transmission-powe","first","instock","product-type-simple"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"The SENTRY French 3 Button 403MHz Radio Frequency Transmitter utilizes an internal DIP switch as a basis to generate the rolling code for its encrypted transmissions. Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. The SENTRY products that are equipped with the French modulation protocol are legacy products and many of the legacy products are forward compatible with the newer products containing embedded technology to learn the legacy code modulation protocol supporting products.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/martin-electronics.co.za\/?product=french-3-button-403mhz\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.8\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Martin Electronics -\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"French 3 Button (403MHz) - Martin Electronics\" \/>\n\t\t<meta property=\"og:description\" content=\"The SENTRY French 3 Button 403MHz Radio Frequency Transmitter utilizes an internal DIP switch as a basis to generate the rolling code for its encrypted transmissions. Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. The SENTRY products that are equipped with the French modulation protocol are legacy products and many of the legacy products are forward compatible with the newer products containing embedded technology to learn the legacy code modulation protocol supporting products.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/martin-electronics.co.za\/?product=french-3-button-403mhz\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-01-09T14:33:05+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-01-11T15:48:20+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"French 3 Button (403MHz) - Martin Electronics\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The SENTRY French 3 Button 403MHz Radio Frequency Transmitter utilizes an internal DIP switch as a basis to generate the rolling code for its encrypted transmissions. Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. 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Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. 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