- 5 in 1 automatic door chime: a motion detector that also functions as greeting, alarm, doorbell, colored light and night light. Light color options include Color, Red, Blue, and Green to distinguish entrances. - Adjustable melodies and volume: receiver offers 36 ringtones and 5 doorbell greetings for personal preference. Volume is adjustable in 4 levels (loud/high/medium/low) from 113 to 25 dB. The colored light lighting mode is quiet and provides 4 brightness levels, with 4 selectable colors for the light. - Sensitive and wide wireless range: the motion sensor covers a wide area with a working range up to 280 m / 918 ft between the receiver and the sensor. The infrared detection range is about 4–8 m / 13–26 ft. Place the motion detector at the porch and put the receiver inside the home. - Applications: a motion detector is a key component of a home security system. It can detect motion around front doors, hallways, gates, walkways, apartments, offices, hotels, stores, and other indoor places, and triggers an alert to the connected receiver for added security for your property and loved ones. - Use scenarios: - Front porch monitoring: quick alerts inside the home with selectable colors to identify which entry was triggered. - Nursery or bedroom monitoring: quiet colored light and night light mode help with visibility for babies or hearing-impaired occupants. - Small business entry: detects customer or staff movement at doors and guides entry with personalized chimes and lights.