Door Wedge Alarm

Forced entry happens in seconds. A loud alarm and wedged door buy you seconds to respond.

When it matters

• Home defense during power outages: burglar alarms are silent without power. This wedge physically blocks the door and sounds 100+ decibels if breached—no electricity required.
• Dormitory or hotel room security: portable wedge fits under any door. Alarm deters intruders and alerts roommates or staff to intrusion attempts.
• Shelter-in-place during civil unrest: wedge multiple entry points. Each alarm increases intruder detection distance and gives occupants time to respond or evacuate.
• Grid-down family security: wedges all doors (front, back, garage) before dark. The alarm ensures no quiet entry while residents sleep or are occupied.

What it does

• Physical wedge prevents door opening—the angle lock holds even under moderate force.
• Audible alarm (100+ dB) triggers when door is forced against the wedge, alerting occupants to intrusion attempts.
• Early warning system—attack comes from outside, alarm sounds inside, occupants have time to secure or escape.
• Deterrent effect: visible wedge + alarm sound discourages opportunistic entry.
• Non-obvious: redundancy backup. Pairs with locks that may fail during power outages or mechanical failures.

Built to last

Wedge is durable plastic and metal—survives repeated deployment. Alarm battery (typically 9V replaceable) lasts 12+ months in standby; alarm duration is 30 seconds to 2 minutes per trigger. Does NOT replace a traditional lock and will not stop determined forced entry with tools—it is early warning and deterrence, not fortress security. Alarm will not sound if door closes gently; it requires force against the wedge to trigger.

Where it fits your kit

Home 72-Hour layer. Pairs with Portable Door Lock for redundancy (door wedge alarms + mechanical locks cover both known and forced entry), and Solar Motion Security Light for perimeter awareness. Together they create layered entry defense: light detects approach, wedge-alarm detects breech.

Specs

• Alarm volume: 100+ decibels
• Wedge material: Plastic/aluminum composite
• Weight: 100–550 grams (single unit to 3-pack)
• Color: Black
• Available configurations: Single, 2-pack, 3-pack
• Battery: Replaceable (typically 9V or AAA dependent on model)

Field notes

• Test alarm monthly: pull the door firmly against the wedge to confirm alarm triggers. Battery failure silent—regular testing prevents discovery during actual breach.
• Position wedge at door hinge side, not the knob side—maximum angle pressure against hinge prevents door swing.
• Store spare batteries (9V or AAA based on your model) in your home 72-hour kit. Alarm is useless if battery is dead.

FAQ

Q: Can this prevent a determined break-in? A: No. It is early warning and deterrence, not a lock replacement. It delays entry by seconds and alerts occupants—valuable for escape time, not fortress security.

Q: What if the door opens outward? A: The wedge works best on inward-opening doors. Outward-opening doors (common in some climates) require testing first—the physics of the wedge angle changes with door direction.

Q: Does the alarm stop after it triggers? A: Typically yes. Alarm sounds for 30 seconds to 2 minutes, then silences. If the door continues to be forced, it may alarm again on repeat attempts.

Covered by the optional Watchtower Guarantee.

Orders are placed with our fulfilment partner within 1–3 business days and ship tracked from overseas warehouses. Transit to the US is typically 5–11 days. Standard shipping is $7.95, free at $149 in qualifying items. We accept physical-item returns. You pay return postage. Refunds are issued within 45 days of receiving your return. Monthly subscriptions and digital products are non-refundable. Full shipping & returns terms.