Door Knob Alarm
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- Free shipping on orders over $50
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Why Choose the Door Knob Alarm?
This door knob alarm from TBOTECH delivers a 120 dB siren—louder than a jackhammer—when triggered by a touch on the doorknob, instantly alerting you and deterring intruders. Its vibration-sensitive design detects attempts to enter, ensuring rapid response. Measuring 4.25" x 2.25" x 1" and powered by a 9-volt battery (not included), it hangs on any metal doorknob (or non-metallic doors with non-metal frames) without wiring.
The versatile security device doubles as a personal alarm—clip the chain to your wrist and pull to activate the siren for on-the-go safety. Compact and portable, it’s perfect for homes, hotel rooms, or temporary accommodations, offering reliable protection wherever you are.
Key Features of the Door Alarm
- 120 dB Siren: Piercing sound alerts you and deters intruders instantly.
- Vibration Trigger: Activates with the slightest doorknob touch for rapid response.
- Dual-Purpose Design: Functions as a door alarm or personal safety device.
- Easy Installation: Hangs on doorknobs in seconds, no wiring needed.
- Portable Size: Compact 4.25" x 2.25" x 1" for home or travel use.
Who Uses This Security Device?
This alarm is ideal for versatile security needs:
- Travelers: Secure hotel or motel rooms with an instant alert system.
- Elderly Residents: Simple protection for home or personal safety.
- Families with Sleepwalkers: Prevent wandering with a loud alert system.
Stay Prepared
Equip this alarm for instant, reliable security at home or on the go.
Why Buy from TBOTECH?
TBOTECH delivers premium security solutions with exceptional benefits:
- 90-Day Money-Back Guarantee: Shop with confidence.
- Fast Shipping: Orders ship promptly with tracking.
- Expert Support: Over 20 years of experience in safety products.
Related Products
Explore more security options:
- Door Stop Alarm – 120 dB wedge alarm to block and secure doors.
- Sticky Gel Defense for Your Home – A non-lethal gel spray for added home security.
Legal & Restrictions
Laws regarding self-defense products vary by state and local jurisdiction. It is the buyer's responsibility to know and comply with all applicable laws before purchasing or carrying this product. When in doubt, check with your local law enforcement or an attorney. View our shipping restrictions page for states where certain products cannot be shipped.
Shipping & Returns
Free shipping on orders over $50. Most orders ship within 1-2 business days. Returns accepted within 90 days of purchase. See our full shipping and returns policy for details.
