5 Modes Motion AlarmNot only serves as a motion to detect alerts but also has other functions. Welcome / Door / Alarm / Color light / Lighting Model. Motion detectors are essential in a home security system. Door chimes can detect movement in the surrounding areas - driveways, front porches, gates, homes, sheds, offices, walkways, swimming pools, stores, etc. And trigger an alert to the linked receiver.36 Ringts & 5 Welcomes Door Rings Languages5 welcome languages are selectable in welcome mode. 36 ringts selectable in door mode. Welcome/door/Alarm model has volume adjustable. Color light/ Lighting mode is silent and has of brightness adjustable. Great for people with hearing disabilities or if there is a sleeping baby in your house. The color light model also has 4 colors selectable.Sensitive & Wide Wireless RangeThe motion door entry alert door chime for business stores catches movement from a broad scope of space, with a working Range of up to 280m/918ft between the receiver and motion . The detection range of the infrared is approximately 2-8m/7-26ft to keep you informed and safe. You can put the motion detector on the porch, gallery, or mailbox and put the receiver in your house.Expandable Wireless Home SecurityFlexible design according to your actual needs. You can choose the quantity of transmitter and receiver you like, which can be freely matched and set special lights or ringts with each other. Each receiver of this motion alarms for elderly an alarm and can work with 32 motion s and 8 remotes at most. While wireless door chime entry alert commercial is suitable for outdoor applications, please note that it is not waterproof.Easy to Install & UseThe wireless door can be used by connecting USB port or installing it with batteriesinfrared needs three AAA batteries and receiver need three AA batteries)to make it work. Both the infrared and the receiver have a mounting base. The motion door can be rotated 360 degrees from left to right and 180 degrees from top to bottom. So easy to install and can rotate to any position you need.