{"product_id":"5v-12v-vibration-sensor-relay-module-sw420-alarm-trigger","title":"5V\/12V Vibration Sensor Relay Module SW-420 Alarm Trigger","description":"\n\u003ch2\u003e5V\/12V Vibration Sensor Relay Module – 2-in-1 Alarm Trigger with Indicator Light\u003c\/h2\u003e\n\n\u003cp\u003eThis compact yet powerful \u003cstrong\u003eVibration Sensor Relay Module\u003c\/strong\u003e is the ideal solution for DIY security systems, industrial monitoring setups, and electronics projects that require reliable vibration-triggered switching. Built around the sensitive \u003cstrong\u003eSW-420 normally closed vibration sensor\u003c\/strong\u003e, this 2-in-1 module can directly drive high-current equipment and trigger alarms with minimal setup. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSW-420 Normally Closed Sensor:\u003c\/strong\u003e Highly sensitive vibration detection for precise, reliable triggering in a wide range of environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Dual Voltage:\u003c\/strong\u003e Compatible with both \u003cstrong\u003e5V and 12V DC\u003c\/strong\u003e power supplies, making it versatile for Arduino, Raspberry Pi, and other common electronics platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Detection Range:\u003c\/strong\u003e The vibration sensor can be positioned remotely — cable lengths up to \u003cstrong\u003e10 meters\u003c\/strong\u003e have no impact on detection sensitivity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Current Relay Output:\u003c\/strong\u003e Directly drives large-load devices rated up to \u003cstrong\u003e250V 10A AC or 30V 10A DC\u003c\/strong\u003e — no additional driver circuitry required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Status Indicator:\u003c\/strong\u003e A built-in green indicator light provides instant visual feedback — light ON means no vibration detected (relay engaged); light OFF when vibration is sensed (relay releases).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour Mounting Holes:\u003c\/strong\u003e Easy, secure installation in any enclosure or panel with four positioning holes included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePower Supply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5V \/ 12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMinimum Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;100mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRelay Load (AC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e250V 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRelay Load (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e30V 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSW-420 Normally Closed Vibration Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax Sensor Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMounting Holes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4 positioning holes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eIn its default (no-vibration) state, the relay is engaged and the green indicator light is ON — the common terminal connects to the normally open contact. When vibration is detected by the SW-420 sensor, the relay releases, the green light turns OFF, and the common terminal switches to the normally closed contact, triggering your connected alarm or device.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVibration-triggered alarm and security systems\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and Arduino\/Raspberry Pi projects\u003c\/li\u003e\n  \u003cli\u003eIndustrial equipment monitoring\u003c\/li\u003e\n  \u003cli\u003eAnti-theft device activation\u003c\/li\u003e\n  \u003cli\u003eHigh-voltage or high-current circuit switching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Vibration Sensor Relay Module\u003c\/li\u003e\n  \u003cli\u003e1× Locating Plate\u003c\/li\u003e\n  \u003cli\u003e2× Cables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Colors may vary slightly due to monitor and lighting differences. Allow ±1–10mm variance due to manual measurement.\u003c\/p\u003e\n\n\u003cp\u003eFor general electrical safety guidance on relay and switching components, refer to the U.S. Consumer Product Safety Commission – Electrical Safety Resources.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What voltage does this vibration sensor relay module support?\u003c\/h4\u003e\n\u003cp\u003eA: This module supports both \u003cstrong\u003e5V and 12V DC\u003c\/strong\u003e power supplies, making it compatible with a wide range of microcontrollers and electronics platforms, including Arduino and Raspberry Pi.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How far can the SW-420 vibration sensor be placed from the relay module?\u003c\/h4\u003e\n\u003cp\u003eA: The SW-420 vibration sensor can be positioned up to \u003cstrong\u003e10 meters away\u003c\/strong\u003e from the relay board with no loss in detection sensitivity, giving you great flexibility in installation placement.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What loads can the relay in this module handle?\u003c\/h4\u003e\n\u003cp\u003eA: The onboard relay is rated for \u003cstrong\u003e250V AC at 10A\u003c\/strong\u003e or \u003cstrong\u003e30V DC at 10A\u003c\/strong\u003e, allowing it to directly switch high-current appliances, alarms, motors, and other large-load devices without additional circuitry.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does the green indicator light indicate on this module?\u003c\/h4\u003e\n\u003cp\u003eA: When the green LED is \u003cstrong\u003eON\u003c\/strong\u003e, no vibration is being detected and the relay is engaged. When vibration is sensed, the relay releases and the green LED turns \u003cstrong\u003eOFF\u003c\/strong\u003e, signaling that the trigger circuit has been activated.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does this vibration sensor relay module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This module supports both 5V and 12V DC power supplies, making it compatible with a wide range of microcontrollers and electronics platforms, including Arduino and Raspberry Pi.\"}}, {\"@type\": \"Question\", \"name\": \"How far can the SW-420 vibration sensor be placed from the relay module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The SW-420 vibration sensor can be positioned up to 10 meters away from the relay board with no loss in detection sensitivity, giving you great flexibility in installation placement.\"}}, {\"@type\": \"Question\", \"name\": \"What loads can the relay in this module handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The onboard relay is rated for 250V AC at 10A or 30V DC at 10A, allowing it to directly switch high-current appliances, alarms, motors, and other large-load devices without additional circuitry.\"}}, {\"@type\": \"Question\", \"name\": \"What does the green indicator light indicate on this module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"When the green LED is ON, no vibration is being detected and the relay is engaged. 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