• Door Chimes When Door Opens - This doorbell chime reminds you when someone opens the door/window. Suitable for family who have children or elderly with dementia, will reminds you in time when they want to go out
• Door Chime For Business When Entering - This door entry chime can be used as a doorbell for your store or office to remind you when someone walks into, you will never miss any customers/visitors
• Easy To Install - The door sensor and receiver are paired at the factory, upon receipt, simply plug the receiver into the socket and tape the door sensors to the door/window. (Note that the large part of the door sensor needs to be pasted on the fixed door/window frame, and the small one on the movable side, two parts not exist 1cm.)
• 58 Ringtones & 5 Volume Levels - The door chime for business when entering has 58 chimes with 5 adjustable volumes (include mute model). With LED indicators and memory function, even after power failure, it will maintains the last set ringtone and volume
• Long Range & Expandable - The window alarm sensors door alarm has 600 ft far enough to cover every door in your house or store. Each doorbell receiver/door sensor can be paired with up to 58 door sensors/receivers, and the great thing is that each pairing can be matched with a different ringtone so you know exactly which door/window is open.

Shipping Note: Shipping to Alaska, Hawaii, P.O. Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty