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【Door Open Alarm】 FUHONGRUI Wireless doorbell chime will be triggered after detaching the sensor it about 0.8inches,and working range up to 600Ft in the open area.
【8 Door Alarm Sensor Expandable 】Each door and window alarm sensor or receiver can be used with our additional window and door sensors or door chimes are be paired up to 8, putting them where they are needed for Home Security or Business.
【Window and Door Alarms for Home】 Door alarms for home security with alarm bells, animal bells welcome bells, musical bells and 4 levels of volume adjustment (0-30-70-110dB), you can place door sensor alarms at different doors and windows to set different melodies to know which door or window is opened.
【LED Light Indicator】This door chime for business when entering is also suitable for people who are hard of hearing to use. When the door sensor chime is triggered by the separation, the middle circular area of the receiver will appear to flash with LED light indication.
【Easy to Install】Easily plug the receiver into an electrical outlet, peel off the tape behind the door window sensor chime, and stick it on the door/window. To avoid affecting the signal reception, please install it far away from metal or machines, such as TV, WiFi devices, computers, etc.