【Wide Range Detection】: The sensor's transmission range detects motion up to 280 meters (918 feet), effectively keeping you alert. You can place the motion sensor detector at the room, which can serve as a caregiver reminder for the Alzheimer's sleepwalking elderly path and reduce the risk of accidents. 【Adjustable Light and Mode 】The door bell chime has five models: Welcome / Doorbell / Alarm / Color light / Lighting Model. With 4 colors LED light, Color/ Red/ Blue/ Green can distinguish multiple entrances by different light colors. You can put the motion sensor detector at the porch, gallery, mailbox and put the receiver in your house. 【Personalize your doorbell chime】: The receiver comes with 4 levels of brightness and color selectable, 36 different ring tones from melody tones to a simple basic buzzer for personal preference and 5 welcome tones for retail. The owners can use the doorbell to be alerted when people enter or leave. Use it to detect visitors through the front or back door. 【Easy Installation & Wide Application】: This door sensor chime is paired before delivery, no wiring required, no installation hassle, self-adhesive installation, the detector is wall mounted. The portable design is easy to install in homes, offices, shops, commercial premises and can also be used for mailboxes, garages, driveways and more. 【Wide Application】:This montion sensor designed for home mailbox, driveway, gallery, gate, doorway, walking paths, door entrance, apartment, office, hotel, store and many other indoor places, not suitale for outdoor; the motion sensor door chime without waterproof function. Also for Kids safety & Caregiver Reminder for Elderly. Featuring a wireless PIR motion sensor detector, the Motion Sensor Doorbell is capable of accurately detecting any movement within a defined range. This allows you to receive instant alerts whenever someone approaches your door, ensuring that you are always aware of who is entering your premises. With its built-in night light, this doorbell provides increased visibility and convenient illumination during low-light conditions. Perfect for both residential and commercial environments, the Motion Sensor Doorbell serves as a reliable caregiver reminder for the elderly and a handy tool to keep kids safe by chiming when the door opens. The LED indicators and vibration feature ensure that you never miss a visitor, even if you are in a different part of your home or business. This makes it incredibly convenient for monitoring sensitive areas such as a mailbox, garage, or driveway. Thanks to its battery-powered design and waterproof construction, the Motion Sensor Doorbell can be easily installed in any desired location without the need for complicated wiring or external power sources. It is built to withstand various weather conditions, ensuring its longevity and reliability.