Door Chime SanJie Wireless Door Sensor for Business Home Office When Entering with 800Ft Range 55 Chimes 5 Volume Levels Adjustable Number Display (2 Receiver & 2 Sensor)

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Overview Color : Black Brand : SanJie Power Source : Battery Powered Battery Description : Alkaline Number of Batteries : 2 CR2 batteries required. (included) About this item 【Wire less & Easy Installation】-Wireless door chime helps you save the trouble of wire installation. Just need to plug in the receiver and stick the wireless door sensor on the door/window you want and set different ringtones to know which door is opened when entering 【Protect the Safety of Your Family】-If you have elderly with dementia, the door open chime can protect your aged parents from going out without your knowledge. If you have naughty children who likes to sneak out, this wireless door buzzer can help you take better care of your children 【55 Ringtones & 5 Volume】-The door entry alert is equipped with 55 kinds of ringtones of different styles for your choices. 5 levels volume adjustable, from silent to noisy(0-110 db), you don't have to worry about not hearing the sound 【LED Number Display】-The LED indicator can display different numbers to help you easily distinguish which door is opened 【Receiving Range of 800Ft/240m】-Large acceptable range allows you to know the arrival of customer on the first floor when you are working on the other floor which is suitable for business entry. Even the basement/garage can be covered, and the door chime can ensure that you can notice it immediately when they are invaded Show more