Thank you for viewing! ⭐️ Please read my profile! ⭐️ (Product Name) Monotaro Door Alarm Open detection type, 1 piece, operation confirmed When installed on entrances, back doors, windows, etc., you can change between chime and alarm sounds with a switch, and you can also turn off the power. Double-sided tape is not included. Please check the condition in the images. ⬇️ List of related household goods #HANAMASUS ⬇️ List of all products #HANAMASUO