Door Knob Alarm: Your Entry’s Silent Sentinel

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AL-2
$1095
In stock
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TBOTECH Door Knob Alarm—120 dB.

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Safeguard your space with the TBOTECH Door Knob Alarm (AL-2). Picture a stranger testing your door—hang this on the inside knob, and a 120 dB siren erupts at their touch, exposing their intent before they step in.

Door Knob Alarm: Instant Intrusion Alert

This door knob alarm blasts a 120 dB siren—louder than a jackhammer—when anyone grabs the knob from outside. Hang it on any metal doorknob (wooden/composite doors with non-metal frames work too); vibration triggers it instantly. No wiring, no fuss—installs in seconds with a 9-volt battery (not included). At 4.25" x 2.25" x 1", it’s portable for home, travel, or motel stays.

Dual-purpose design shines: clip the chain to your wrist as a personal alarm—pull to unleash the siren if attacked—or use it as a sleepwalker deterrent, waking them before they wander. TBOTECH, with over 20 years of reliability, offers this protector with fast shipping and a 90-day guarantee. Pair it with a Sticky Gel Defense for Your Home for total security. Order your Door Knob Alarm now—unseen vigilance at your fingertips!

Features

  • 120 dB Siren: Piercing sound unmasks intruders.
  • Vibration-Sensitive: Triggers at the slightest touch.
  • Portable Design: Hangs on knobs, clips to you.

Get your TBOTECH Door Knob Alarm today—peace of mind that roars!

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in stock
Brands
TBOTECH
Product Condition
new
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David Hirschler
Comment
This device works well on wooden doors, but not metal ones. Also the alarm siren is not as loud as other devices (such as the door stop alarm).
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