120dB Sound Alert Wedge Security Door Stopper Alarm

Prevent unauthorized entry and alert occupants instantly with the 120dB Sound Alert Wedge Security Door Stopper Alarm. Engineered as a dual-action physical barrier and intrusion detector, this wedge-shaped security device slides flush beneath standard inward-swinging doors.

When forced entry is attempted, the heavy-duty stainless steel cover depresses, triggering an ear-piercing 120dB high-output siren while the non-skid rubber base bites into the floor surface to physically jam the door leaf.

Operating 100% cord-free on a standard 9V battery, it requires zero screws, wiring, or permanent adhesives—making it an ideal safety tool for homes, rental apartments, student hostels, and travel hotel rooms.

Key Features & Specifications

• Product Type: Portable Wedge Door Jammer & Siren Security Alarm.

• Piercing 120dB Siren Alert:

  • High-decibel acoustic sounder activates instantly when the top plate is depressed.

  • Audibly alerts sleeping residents, warns neighbors, and startles prospective intruders away before they cross the threshold.

• Dual Physical & Electronic Protection:

  • Physical Barrier: Sloped wedge geometry leverages incoming door pressure downward, locking the door firmly in place.

  • Electronic Alarm: Spring-loaded metal contact switch fires the siren the instant the door makes contact with the plate.

• 3-Level Adjustable Sensitivity Switch:

  • Features a side slide switch with High (H), Medium (M), and Low (L) sensitivity settings to adapt to different door gap heights and floor tensions.

  • Can be switched to OFF to function purely as a passive rubber door wedge without sound.

• Heavy-Duty Slip-Resistant Base:

  • High-grip grooved silicone/rubber underbelly prevents sliding across slick tile, hardwood, linoleum, laminate, and short-pile carpet.

  • Premium stainless steel pressure plate resists high foot pressure, kicking, and repeated impacts.

• 100% Wire-Free & Battery-Operated:

  • Powered by a single standard 9V alkaline battery (sold separately / depending on pack).

  • Ultra-low standby power draw provides months of continuous room protection without cords or wall chargers.

• Compact & Travel-Friendly:

  • Lightweight, pocket-sized profile slips easily into carry-on luggage, backpacks, or laptop bags for peace of mind while staying in hotels, motels, and Airbnbs.

Broad Universal Applications & Target Uses

• Rental Homes & Apartments: Add an extra layer of interior night-time security without drilling into landlord doorframes or modifying existing locks.

• Hotels, Motels & Holiday Baches: Essential personal safety travel companion to prevent unauthorized entry via master keys, housekeeping access, or cloned room cards.

• Student Dormitories & Flatting Rooms: Secure individual bedroom doors in shared flats and college accommodations.

• Home Offices & Workshops: Jam interior entry doors when focused work requires privacy and intrusion prevention.

• Elderly Living & Solo Dwellers: Keep placed beside bedside tables to slide under entry or back doors each evening before sleeping.

Quick 4-Step Setup & Operation Guide

1. Insert Battery: Slide off the bottom battery compartment door, snap in a 9V battery with correct terminal alignment, and close the cover.

2. Select Sensitivity: Set the side toggle switch to M (standard) or H (high sensitivity for larger door gaps).

3. Position Wedge: Place the narrow tip of the wedge snugly underneath the bottom edge of any inward-opening door (approx. 5 mm to 15 mm gap).

4. Arm & Test: Gently push the door forward until the stainless steel plate depresses slightly to confirm the siren triggers; pull the door back and the alarm stops immediately.