Black and silver wedge door stop alarm with sensitivity switch that braces the door and sounds a siren
Door stop alarm

Door Stop Alarm (120dB)

4.6 · 3 reviews

A door wedge that screams when someone pushes on it.

$16.99One-time · free tracked shipping
Free tracked shipping Free 30-day returns 1-year warranty
  • Holds the door and sounds offThe rubber wedge jams the door while a 120dB siren goes off.
  • No install, works anywhereSlide it under the door. No screws, no setup.
  • Built for travelPocket-size, on/off switch, fits a carry-on or a dorm desk drawer.
  • Runs on one 9VA single 9V battery, no wiring and no outlet. 9V battery not included.
Door Stop Alarm (120dB) $16.99

A hotel lock you can't trust

The flip latch on a hotel door is a privacy bar, not a lock.

Most rooms you sleep in on the road have one real lock and one flimsy swing-bar that anyone with a tool can defeat from the hallway. You can't change the lock, and you can't see who has a keycard.

A door stop alarm puts a barrier where the door meets the floor. Push the door and the wedge digs in. At the same time it screams, which is the part a quiet shove was counting on you not having.

A break-in counts on quiet. This takes the quiet away.
120dB
alarm siren
0tools
slides under
1x 9V
battery powered
0.75in
door gap needed
Door stop alarm wedged under an inward-opening door, fits floor gaps of 0.6 to 1.2 inches
Two jobs at once

It blocks the door and wakes the building.

The non-slip rubber base grips the floor so the wedge doesn't skid when the door pushes against it.

Adjustable sensitivity lets you set how hard the door has to move before the siren trips.

Inward-opening doors120dB sirenOn/off switchNo installation
Tool-free

Ready in about ten seconds.

1

Drop in the battery

One 9V clips into the back, then flip the switch to on.

2

Slide it under the door

Push the wedge in at the floor until it's snug.

3

Set sensitivity

Pick low, medium, or high for how easily it trips.

Needs about a 0.75 inch gap under the door to work.
For the road

The lock you bring with you.

Hotels, Airbnbs, and dorm rooms come with locks you didn't choose and can't replace. This one goes in your bag, sets up in seconds, and comes with you to the next room.

Layer your defense

Block the door, and alarm the door.

Take the wedge on the road. At home, the TremShield Alarm sticks to the door at handle height and sounds 125dB if it's rattled or forced. Six are $99, $16.50 each.

See the alarm
White TremShield vibration sensor alarm
Good to know

Questions, answered calmly

Inward-opening doors with about a 0.75 inch gap underneath.

Yes, one 9V battery. Sold separately.

Yes, that's what it's made for. No install, just slide it under and go.

Yes, there's an on/off switch so it can also be a plain door wedge.

120dB, loud enough to wake you and alert people nearby.

From the security guide

How to Secure an Apartment Door From the Inside

A rental entry door, braced from the inside tonight, with the fire question answered: what you add has to come off by feel, in the dark, ...

Read the guide →

Stay one step ahead

Real home-security tips, first looks at new gear, and the occasional subscriber-only deal. Unsubscribe anytime.