{"product_id":"dc-12v-single-channel-rf-wireless-relay-switch-kit","title":"DC 12V Single Channel RF Wireless Relay Switch Kit","description":"\u003ch2\u003eDC 12V Single Channel RF Wireless Relay Switch Kit – Receiver + Remote Transmitter\u003c\/h2\u003e\n\u003cp\u003eTake full wireless control of your electronics projects with this compact \u003cstrong\u003eDC 12V Single Channel RF Relay Module Kit\u003c\/strong\u003e. Designed for DIY enthusiasts, hobbyists, and automation builders, this set pairs a 315 MHz RF receiver module with a handheld remote transmitter — giving you reliable wireless switching capability up to 50 metres away. It's a versatile solution for home automation, garage doors, lighting control, alarm systems, machine tools, and more.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Replacement Switch:\u003c\/strong\u003e A drop-in wireless alternative for door-open buttons or device switches — compatible with elevator controllers, automobile electronics, household appliances, alarm systems, and general automation circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree Flexible Control Modes:\u003c\/strong\u003e Choose the mode that best fits your application — Self-Lock, Inter-Lock, or Jog (momentary) — for maximum project flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e315 MHz RF Signal:\u003c\/strong\u003e Delivers sensitive and strong signal transmission that can pass through walls, floors, and doors for dependable control anywhere within range.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUp to 50m Range:\u003c\/strong\u003e Operate your switch from up to 50 metres away in open space with no obstacles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-Lock Safety Function:\u003c\/strong\u003e Built-in self-lock mode enables safe circuit conversion and protection for your connected devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Construction:\u003c\/strong\u003e Professional PCB board with high-quality plastic casing — spark-free, noise-free, anti-corrosion, moisture-proof, and anti-vibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Lightweight, small-form-factor design makes it easy to integrate into tight spaces or carry the remote with you.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eCE Certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eControl Modes Explained\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. Self-Lock Mode:\u003c\/strong\u003e Press once → ON; Press again → OFF. (Uses 1 relay channel + 1 remote button.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Inter-Lock Mode:\u003c\/strong\u003e Press one button → ON; Press a different button → OFF. (Uses 1 relay channel + 2 remote buttons.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Jog (Momentary) Mode:\u003c\/strong\u003e Hold button → ON; Release → OFF. (Uses 1 relay channel + 1 remote button.)\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eReceiver Module\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking Voltage: DC 12V\u003c\/li\u003e\n  \u003cli\u003eLoad Current: 10A\u003c\/li\u003e\n  \u003cli\u003eFrequency: 315 MHz\u003c\/li\u003e\n  \u003cli\u003eDimensions: Approx. 35 × 32 × 19 mm (1.4 × 1.3 × 0.7 in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRemote Transmitter\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eColor: White\u003c\/li\u003e\n  \u003cli\u003eFrequency: 315 MHz\u003c\/li\u003e\n  \u003cli\u003eButtons: 1 Button\u003c\/li\u003e\n  \u003cli\u003eBattery: CR2016 Button Battery \u003cstrong style=\"color:#c0392b\"\u003e(NOT Included)\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eDimensions: Approx. 35 × 60 × 9 mm (1.4 × 2.4 × 0.4 in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePackage\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage Size: Approx. 90 × 80 × 30 mm (3.5 × 3.1 × 1.2 in)\u003c\/li\u003e\n  \u003cli\u003ePackage Weight: 42g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Wireless RF Relay Receiver Module (Circuit Board)\u003c\/li\u003e\n  \u003cli\u003e1 × Remote Control Transmitter \u003cstrong style=\"color:#c0392b\"\u003e(Battery NOT Included)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10Pcs Wooden Handle Nylon Bristle Paint Brush – Hand Tool Set\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003e1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Portable Mini\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-professional-heavy-duty-pruning-shears-with-anti-slip-handle-design-suitable-for-trimming-thick-and-sturdy-branches\"\u003e1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle\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 control modes does this RF wireless relay switch support?\u003c\/h4\u003e\n\u003cp\u003eA: This relay switch kit supports three control modes: \u003cstrong\u003eSelf-Lock\u003c\/strong\u003e (toggle on\/off with the same button), \u003cstrong\u003eInter-Lock\u003c\/strong\u003e (one button turns it on, another turns it off), and \u003cstrong\u003eJog\/Momentary\u003c\/strong\u003e (the relay is active only while the button is held down). You can select the mode that best matches your DIY project needs.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the remote control battery come included?\u003c\/h4\u003e\n\u003cp\u003eA: No — the CR2016 button battery for the remote transmitter is \u003cstrong\u003enot included\u003c\/strong\u003e in the package. You will need to purchase one separately before using the remote control.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the maximum wireless range of this relay module?\u003c\/h4\u003e\n\u003cp\u003eA: The 315 MHz RF signal can reach up to \u003cstrong\u003e50 metres (approximately 164 feet)\u003c\/strong\u003e in open space without obstacles. Range may be reduced in environments with thick walls or significant interference, though the signal is designed to penetrate common building materials such as standard interior walls, floors, and doors.\u003c\/p\u003e\n\u003ch4\u003eQ: What devices or applications can this wireless relay switch be used with?\u003c\/h4\u003e\n\u003cp\u003eA: This kit is well-suited for a wide range of DIY and automation applications, including garage door openers, lighting circuits, alarm systems, machine tool controls, home automation projects, elevator controllers, and general household appliance switching — any device operating on or controllable through a DC 12V relay circuit.\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 control modes does this RF wireless relay switch support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This relay switch kit supports three control modes: Self-Lock (toggle on\/off with the same button), Inter-Lock (one button turns it on, another turns it off), and Jog\/Momentary (the relay is active only while the button is held down). 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