Door Chime,Wireless Door Sensor SanJie Door Alarm Chime with 26 Chimes 5 Adjustable Volume Mute Mode for Business/Home/Store,Door Open Sensor with 500FT Range LED Indicators 1 Receiver +4 Sensors

Product Up-gradation: The upgraded door sensor chime can make each battery use 100,000 times, easy to use 3-5 years, you no longer have to frequently replace the battery
Door Chimes When Door Opens: This wireless door chime can be a good reminder for you if you have toddler who try to sneak out of their bed room or help alert you the elderly with dementia who is trying to get out of the house
Wide Working Range: This wireless door open chime for home is up to 500 ft in open area.The 26 ringtone options match different ringtones to different doors so you know which one opens
Easy to Install: Just plug the wireless door chime receiver into standard outlet, tear the double-side adhesive tape of the door sensor alarm and stick them to any door or window,door chimes when door opens (Note: Not for Metal Doors)
Mute to 110dB: 5 adjustable volume levels. The max volume 110dB is loud enough to be heard anywhere in the house even basement, you will never miss out an alert. Prefer not to be disturbed? Set it to mute
50 Sensors Expandable: The receiver can be paired up to 50 chime sensors.The door sensor can be paired up to 50 receivers. Can be used to install in your dining room, bedroom, living room, garage, yard, or your store and office
Memory Function: LED indicators of the doorbell chime are suitable for the elderly and hearing impaired. Remembers your last chime after a power outage; no need to reset to your previous settings