SECRUI Door Chime, Wireless Door Chimes When Door Open Entry for Business/Home/Office/Store (500ft Range 32 Chimes Adjustable Volume) Door Ringer Alert Buzzer Sensor Alarm - M5373+D037

• 【Easy to install】 This door sensor chime has been paired before delivery. No need for wiring or electrician installation: simply plug the receiver into the socket and tear off the double-sided adhesive from the back of the door sensor, then stick them to the door, and you're ready to go. 【32 Chimes Options & Adjustable Volume】Our door sensor alarm has 32 music ringtones to choose, door chime also features LED indicators that work together with the sound so you can notice it quickly. Memory function: Keep the previous setted tune after re-plugging it 【500Ft Working Range】:The high-frequency electronic technology door open chime is capable of reaching up to 500 feet, magnetic door sensor will automatically trigger the receiver when the magnetic strip is separated and the receiver will alerts immediately whenever the door or window is opened. 24/7 security for Your Family 【Compatibility Widely】receiver: (Size:2.76x2.76x0.76 inch), sensor: (Size:3.0*0.61*1.0 inch).The door alert chime is small enough to be used in all kinds of homes, business entrances, offices, stores, etc. ABOUT SECRUI:SECRUI is all about making your home or business a safer and more secure environment.This door opening chimes is designed to Protect your kids and stop opening door, windows, cabinets,pool door unprotected and other dangerous behaviors., Manufacturer: SECRUI