Door Alarm - Wedge with 125dB Siren and Vibration Sensor SDS85. The portable SDS85 door alarm provides reliable protection for your home, hotel, or dorm room by preventing the door from opening and instantly activating a 125dB alarm that deters intruders and alerts the area.

The wedge-shaped design with a non-slip base ensures stability, while the built-in vibration sensor offers an additional level of security in case the wedge is moved. It operates on a 9V battery and requires no installation, making it an ideal security solution for travel and daily use.

The package includes:

• 1x - SDS85 Door Alarm

Instructions for use:

• Make sure the switch is in the "off" position.
• Insert a 9V battery (not included) into the compartment at the bottom of the device.
• Place the alarm on the floor with the low side under the door.
• Turn the switch to the "on" position.