USUPERINK Wireless Door Open Chime, Contact Sensor Doorbell with 36 Chime Tunes/4 Volume Levels/LED Flashing Light, 4 Magnetic Door Alarm Sensor, 4 Receiver Battery Operated - ZJKSSF20DM4PK/CA47

• The magnetic sensor activates when the magnetic stripe is separated, and transmits a signal to the portable receiver then receiver makes chime to alert you. With 36 selectable chimes, and 4 adjustable levels volume from 113dB to 25dB. Suitable for Doors, Windows, Sliding Door/ Window. Application: home, shops, hotels, offices, restaurants, supermarkets. This Door entry chime with 4 colors LED light, Color/Red/Blue/Green, and 4 levels adjustable brightness, distinguish multiple entrances by different colors. Welcome/Doorbell/Alarm/Colorful light/Night Light Mode 5 in 1 multi-function, you could set the proper mode according to your need. Note: In night light mode, receiver lights on for 2 minutes only when it activated. DIY home protection, more USUPERINK sensors and receivers available for pairing, extendable up to 32 magnetic sensor/vibration sensor/PIR motion. Note: the item is not compatible with other brand's product.