Anti-theft Alarm: Loud Sound Hater! Security Enhancement Sensor [For Doors & Windows]

Unused item.
As this has been in storage, the alarm sound has been confirmed with a personal battery.
The included battery has not been tested, so its usage status is unknown.

■ Product Description
This is a security sensor Otonirai No. 1 (DS-SE-1) from Japan Lock Service Co., Ltd. (NLS).
When a door or window opens, the magnetic sensor detects the separation and deters intruders with a loud alarm sound and red light.

■ How to Use
Installation: Attach the main unit and magnetic part to the door or window frame with double-sided tape. If you can drill holes, you can also secure it with the included screws.
Placement: Install the main unit and magnet next to each other with the door closed. The alarm will sound if they are separated by more than 20mm.
Switch: Turn the side switch to ON to enter alert mode.

■ About Batteries
Battery Used: Uses 2 AAA batteries.
Estimated Lifespan: Approximately 6 months if the alarm sounds once a day for 3 seconds.
Note: The batteries included in the package are for testing purposes (manganese batteries), so it is recommended to replace them with new alkaline batteries soon.

■ Installation Tips
When installing on a window, attaching it near the center of the sash (vertical bar) is also effective against attempts to break in through the glass.
If the height of the main unit and magnet do not match, use the included adjustment felt to align the heights.