2-in-1 Personal & Burglar Door Alarm – 120dB Dual-Mode with Pull Chain Activation, 9V Battery Powered

A Personal Alarm and a Door Alarm in One Device Most personal alarms just make noise when you pull a pin. Most door alarms just hang on a knob. This one does both, and it switches between modes without any tools or setup. Traveling? Hang it on the hotel room door. Walking at night? Pull the chain and 120 decibels of attention hits the street. It’s one of those products that earns its spot because it actually does two useful things. Who This Alarm Is For Travelers who stay in hotel rooms and want an extra layer of security beyond the deadbolt. College students who want a door alarm for the dorm and a personal alarm for the walk home. People living in apartments who want a simple, no-installation alarm on their door. Anyone who wants a loud personal alarm without buying a separate device for each use. Is This the Right Choice for You? Choose this 2-in-1 alarm if you want: Both personal and door alarm in a single, affordable device A travel-friendly security option for hotel rooms and rentals 120dB volume that’s loud enough to get real attention Consider something else if you need: A keychain alarm for everyday carry — this is a bit big for keys A louder alarm — check the 130dB options if maximum volume matters How Both Modes Work In personal alarm mode, you carry it with you and pull the chain when you need attention. The 120dB alarm fires off instantly — loud enough to startle an attacker and get everyone within earshot looking your direction. That kind of attention is usually enough to make someone back off. In door alarm mode, you hang the device on any non-metallic doorknob. The sensor detects when someone touches or jiggles the door handle and the alarm blasts immediately. No wiring, no apps, no Wi-Fi — just hang it and go to sleep. It’s especially useful in hotels, Airbnbs, and dorm rooms where you can’t install permanent security. Quick Comparison: How Does a Door Alarm Stack Up? Feature Door/Window Alarm Motion Sensor Security Camera Barking Dog Alarm Setup Peel and stick ✓ Mount and aim Install WiFi Plug in and aim Monthly Fees None ✓ None ✓ Often required None ✓ Detection Type Contact — door/window opens ✓ Movement in room Video motion Radar through walls ✓ Portability Travel-friendly ✓ Semi-portable Fixed install Semi-portable Best For Entry points, travel Room coverage Recording evidence Whole-house deterrent Practical Details The alarm runs on one 9-volt battery, which is widely available and easy to replace. The unit measures 4¼ by 2¼ by 1 inch and weighs 0.23 pounds. Black housing that’s low-profile and doesn’t attract attention on a doorknob. Comes with the pull chain included. No installation, no setup — just add a battery and it’s ready to go. Two functions, one device, under twenty bucks. Keep it by the bed when you’re home and throw it in your bag when you travel. Frequently Asked Questions Why does it only work on non-metallic doors? The door alarm mode uses a sensor that detects vibration on the doorknob. Metal doors and knobs can interfere with the sensitivity. It works great on standard interior doors, hotel room doors, and most apartment doors. If you have a metal door, test it before relying on it. How loud is 120 decibels? 120dB is louder than a car horn and roughly equivalent to a thunderclap. It’s definitely loud enough to wake you up, alert neighbors, and make an intruder reconsider their choices. You’ll hear it through walls, doors, and down hallways. How long does the 9-volt battery last? In standby mode, a quality 9-volt battery will last for months. The alarm only draws significant power when it’s actually sounding. Keep a spare battery on hand, especially for travel, and you’ll always be ready.