Description This product is a door sensor, made of solid materials, safe and durable. It can serve you for a long time without being easily damaged. The product is an excellent door sensor that can bring you more convenience, allowing you to have a more comfortable experience. Features -Color:White -Material:Plastic -Size:6.30X4.40X2.00cm/2.48X1.73X0.79in Battery: 3 x LR44 - Loud alarm: High-decibel alarm effectively deters intruders, no professional skills required. - Versatile use: this door alarm is suitable for home, office, shop and other places. - The high-pitch alarm sound creates a loud and effective deterrent against intruders. - The plastic housing is sturdy and reliable, ensuring the durability of the alarm. - Small and compact size, light in weight, you can carry and use it wherever you go. Reliable security: Provides reliable security for your property. Easy to install and operate. Wide application: Suitable for various places, such as doors, windows, cabinets, and etc. Easy installation without professional skills needed. Suitable for home, office, store, and various other locations. The window alarm sensor is suitable for various environments, providing comprehensive security. Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience.