{"product_id":"transmitter-solutions-390lmd21k3-remote-390-mhz-10-pack","title":"Transmitter Solutions 390LMD21K3 Remote 390 MHz - 10 Pack","description":"\u003ch2\u003eCompact 390 MHz Keychain Remotes Compatible with LiftMaster® 61LM\u003c\/h2\u003e\n\u003cp\u003eThe Transmitter Solutions 390LMD21K3 Firefly³ 10-Pack delivers high-quality, compact keychain-style remotes engineered to \u003cstrong\u003ereplace the LiftMaster® 61LM and 9-dip switch receivers operating at 390 MHz\u003c\/strong\u003e. Designed for gates, garage doors, and access control systems, these remotes provide reliable long-range performance with quick dip switch programming for easy setup. Their durable design and weather-resistant build make them ideal for both residential and commercial environments.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSold in packs of 10 for multi-user or large property applications\u003c\/li\u003e\n\u003cli\u003eLiftMaster® 61LM compatible and supports all 9-dip switch receivers at 390 MHz\u003c\/li\u003e\n\u003cli\u003ePortable keychain design with dark blue button and durable ABS housing\u003c\/li\u003e\n\u003cli\u003eLong-range reliable transmission for gates, garage doors, and access control systems\u003c\/li\u003e\n\u003cli\u003eQuick setup using dip switch configuration for seamless integration\u003c\/li\u003e\n\u003cli\u003eEfficient operation in extreme temperatures for indoor and outdoor use\u003c\/li\u003e\n\u003cli\u003eBattery powered with included 12V A23 battery for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 390LMD21K3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 390 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Buttons:\u003c\/strong\u003e 1 (Dark Blue)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 12V A23 (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e –20°F to 85°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 1-1\/2\" × 2-1\/8\" × 3\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConclusion\u003c\/h3\u003e\n\u003cp\u003eThe Transmitter Solutions 390LMD21K3 Firefly³ 10-Pack combines ease of programming, compact portability, and reliable performance. Designed as a direct replacement for LiftMaster® 61LM remotes, these keychain transmitters ensure dependable access control for any 390 MHz dip switch system, offering the perfect blend of convenience and durability.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0141\/9617\/8998\/files\/390LMD21K3_specs.pdf?v=1687548808\" class=\"elite-button\" target=\"_blank\"\u003eDownload Specs\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0141\/9617\/8998\/files\/390LMD21K3_manual.pdf?v=1687548808\" class=\"elite-button\" target=\"_blank\"\u003eDownload Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Transmitter Solutions","offers":[{"title":"Default Title","offer_id":45441984823604,"sku":"390LMD21K3","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0141\/9617\/8998\/files\/390LMD21K3.jpg?v=1753910815","url":"https:\/\/theelitegateoffers.com\/products\/transmitter-solutions-390lmd21k3-remote-390-mhz-10-pack","provider":"Elite Gates","version":"1.0","type":"link"}