Door Chime, 500ft Operating Range 52 Chimes Adjustable Volume with Mute Mode LED Indicators 1 Plug-in Receiver 1 Magnetic Door Alarm Sensor for Home Security & Office

Secrui wireless door open chime is priced affordably to protect every entryway in your home.
With its simple peel and stick installation, compact design and loud alarm, the Mini door entry
alarm with chime is an effective solution to home security.
  Magnetically triggered alarm to guard your entry ways
  Simple peel and stick installation
  Select alarm or chime
  Loud 100dB alarm
  Alarm/chime sounds when the protected door or window is opened
  1x 23A 12V alkaline battery (included)
 
  Parameters of Doorbell Receiver:
  52 tones optional
  Colorful LED indicator
  Standby current :

Product Features

• 【Monitor Every Areas You Care with Wireless Door Chime】500 feet far enough to cover every door and window in your house. Each wireless doorbell receiver can pair up to 20 magnetic door alarm sensors and each sensor can add unlimited receivers.
• 【24/7 Lifeguard for Your Family】This business door entry chime alerts when burglar opens door and helps deter break-ins(wireless door alarms activates when magnetic sensor separates)
• 【Mini Contact Sensor】Door alarm sensor (size: 3.0 x 1.0 x 0.60 inch), magnetic strip (size: 1.7 x 0.6 x 0.4 inch). They are small size and can be installed or placed at any indoor position to provide you with a door entry chime/alert system.
• 【52 Music with Mute to Loud dB】This door entry alert for business has 5 levels of adjustable volume from 0-110 dB.Offer 52 elegant music from the traditional”Ding Dong” to various well know chimes.Memory function: Keep the previous setted tune after re-plugging it
• 【Easy to install】Just plug the doorbell receiver into any standard outlet and tear the double- sided adhesive tape which on the back of door sensor( or screw mounted) and stick them to the door or window is fine,please take the insulating paper away before using the sensor.