{"product_id":"portable-alarm-door-stopper-security-brace-door-lock","title":"Anti-Theft Portable Alarm Door Stopper \u0026 Security Brace","description":"\u003ch2\u003ePortable Alarm Door Stopper Security Brace - 80dB Vibration Alarm Anti-Theft Travel Door Lock\u003c\/h2\u003e\n\u003cp\u003eYou’re in a hotel room. The door has a lock — but you’ve seen the news. You know a standard hotel lock isn’t always enough.\u003c\/p\u003e\n\u003cp\u003eYou slide the \u003cstrong\u003ePortable Alarm Door Stopper Security Brace\u003c\/strong\u003e under the door handle, tighten the bolt clockwise in seconds, and flip on the alarm switch.\u003c\/p\u003e\n\u003cp\u003eNow the door is physically braced against the floor with a suction cup that redirects every pound of forced entry pressure straight down into the ground.\u003c\/p\u003e\n\u003cp\u003eAnd if anyone even tries to push it — the 80dB alarm fires instantly. You sleep. Deeply. Because you know nothing is getting through that door tonight.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Red door stopper attached to a white door on a marble floor.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0959\/1822\/7747\/files\/Red_door_stopper.webp?v=1774331408\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysics-Based Door Bracing:\u003c\/strong\u003e The brace hooks under the door handle and transfers all inward push force downward into the suction cup base on the floor — the harder someone pushes, the more force is directed into the ground. No amount of pushing opens the door\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e80dB Vibration Alarm:\u003c\/strong\u003e High-sensitivity vibration sensor triggers an instant 80dB alarm the moment anyone attempts to force the door — loud enough to wake you, alert neighbors, and deter any intruder immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Second Alarm Burst:\u003c\/strong\u003e Each vibration trigger fires a 5-second high-pitched alarm burst — enough to startle and deter while giving you time to react\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-in-1 Standard + Alarm:\u003c\/strong\u003e Use with the alarm module attached for full security mode, or without for a silent physical door brace — two levels of protection in one device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Aluminum Alloy Construction:\u003c\/strong\u003e Aircraft-grade aluminum alloy body — won’t bend, crack, or deform under forced entry pressure. Built to withstand serious force\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRubber Suction Cup Base:\u003c\/strong\u003e Chrome-finished suction cup base grips tile, marble, hardwood, and smooth floor surfaces firmly — locks in place under load and releases instantly with an upward lift for emergency exit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Installation in Seconds:\u003c\/strong\u003e Insert under door handle → tighten bolt clockwise → switch on alarm → done. No drilling, no screws, no tools, no damage to the door or frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Quick Release:\u003c\/strong\u003e Lift the device upward with a single motion to instantly remove and open the door from the inside in an emergency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTSA-Friendly \u0026amp; Airport Security Approved:\u003c\/strong\u003e Compact, lightweight, and made from non-restricted materials — passes through airport security scanners without issue. Take it on every trip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Door Compatibility:\u003c\/strong\u003e Works on inward-opening doors with standard lever or round handles — hotel rooms, Airbnb, dorm rooms, offices, and home bedrooms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Red door stopper with force arrows on a gray background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0959\/1822\/7747\/files\/door_stopper.webp?v=1774331485\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eHow the Physics Work\u003c\/h2\u003e\n\u003cp\u003eStandard door locks resist force at the lock point only — a single weak point. This brace changes the physics entirely.\u003c\/p\u003e\n\u003cp\u003eBy hooking under the door handle and anchoring to the floor via the suction cup base, it creates a lever system that redirects 100% of the inward push force downward into the ground.\u003c\/p\u003e\n\u003cp\u003eThe floor itself becomes the resistance. The harder the push, the stronger the brace holds. It’s the same principle used in professional door barricade systems — now in a pocket-sized travel device.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Red door alarm system with vibration sensor on a white background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0959\/1822\/7747\/files\/door_alarm_system.webp?v=1774331522\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003e4-Step Installation Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep 1:\u003c\/strong\u003e Insert the door hook bracket under the door handle from below\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep 2:\u003c\/strong\u003e Tighten the adjustment bolt clockwise until the suction cup base sits firmly on the floor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep 3:\u003c\/strong\u003e Flip the alarm switch to ON to activate the vibration sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep 4:\u003c\/strong\u003e Test by gently pushing the door from the inside to confirm it’s locked in position\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eTo remove: flip alarm switch OFF, then lift the device upward with one hand. Takes under 3 seconds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Step-by-step installation guide for a red door lock mechanism on a gray background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0959\/1822\/7747\/files\/red_door_lock.webp?v=1774331637\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBusiness travelers on extended stays\u003c\/li\u003e\n\u003cli\u003eStudents in dormitories and shared housing\u003c\/li\u003e\n\u003cli\u003eHome bedrooms for additional overnight security\u003c\/li\u003e\n\u003cli\u003eVacation rentals and short-term accommodation\u003c\/li\u003e\n\u003cli\u003eRemote workers in co-living spaces\u003c\/li\u003e\n\u003cli\u003eParents securing children’s rooms\u003c\/li\u003e\n\u003cli\u003ePersonal safety gifts for travelers, students, and women living alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum alloy body + rubber suction cup base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Volume:\u003c\/strong\u003e 80dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Duration:\u003c\/strong\u003e 5 seconds per trigger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e High-sensitivity vibration sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Tool-free, under door handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelease:\u003c\/strong\u003e Single upward motion (emergency exit compatible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel:\u003c\/strong\u003e TSA-friendly, airport security approved\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Doors:\u003c\/strong\u003e Inward-opening doors with lever or round handles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Floors:\u003c\/strong\u003e Tile, marble, hardwood, smooth surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Aluminum Alloy Door Stopper Security Brace\u003c\/li\u003e\n\u003cli\u003e1 x Vibration Alarm Module (alarm versions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e On carpet or textured floors where the suction cup grip is reduced, place a small flat book or hard surface mat under the suction cup base for maximum grip and bracing strength!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSleep safely anywhere in the world — order your Portable Alarm Door Stopper Security Brace today and turn any room into a secure space in seconds!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Ninjanew","offers":[{"title":"Alarm Type","offer_id":54860673286435,"sku":"DOOR-STOP-ALARM-SEC-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"None Alarm Type","offer_id":54860673319203,"sku":"DOOR-STOP-ALARM-SEC-2","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/1822\/7747\/files\/Red_door_stopper.webp?v=1774331408","url":"https:\/\/ninjanew.com\/products\/portable-alarm-door-stopper-security-brace-door-lock","provider":"Ninjanew","version":"1.0","type":"link"}