Door Knob Alarm 4 Pack 120dB Vibration Sensor Alert – Black

Easy To Install & Set

Installation is nothing more than hanging the unit onto the doorknob and turn on the alarm.

Reliable Security

Once triggered, loud 120dD alarm sound will alert you, an intruder will be startled and flee the premises.

Alarm Type: Vibration Burglar Alarm

Alarm Mode: Sound & LED flash

Alarm Volume: 120 dB

Alarm Duration: 8s

Color Options: Black/Red

Power Supply: 2 x CR2032 batteries

Suitable For: Door hand/Door knob/Window/Luggage

Item Size: 4.2 x 3.5 x 1.5 cm(1.65 x 1.38 x 0.59 inch)

Item Weight: 22 g(0.78 oz)