Door Sensor Chime, Motion Detector Alarm, Commercial Door Bells for Business Entry, Home Security Alert (918 Feet, 36 Tunes, 4 Volume Levels, LED Indicators), 2Receiver1Infrared Transmitter

5 Modes Motion Sensor AlarmIt serves not only as a motion sensor for detecting alerts but also offers other functions. Welcome / Doorbell / Alarm / Color light / Lighting Mode. Motion detectors are a key part of a home security system. While this wireless door chime is suited for indoor applications, please be aware that it is not waterproof. 36 Ringtones & 5 Welcome Language Rings5 welcome languages can be selected in welcome mode. 36 ringtones can be selected in doorbell mode. Welcome/doorbell/Alarm mode provides 4 levels of volume adjustment. Color light/Lighting mode operates silently and offers 4 levels of brightness adjustment.

Ideal for people with hearing impairments or if there is a sleeping baby in your house. Sensitive & Wide Wireless RangeThis motion sensor doorbell entry alert door chime for business stores detects movement across a broad area, with a working range of up to 280m/918ft between the receiver and motion sensor. The infrared sensor's detection range is roughly 2-8m/7-26ft to keep you informed and safe. Expandable Wireless Home SecurityYou can choose the number of transmitters and receivers you prefer. Each receiver of this motion sensor alarm can pair with up to 32 motion sensors and 8 remotes.

The doorbell uses distinct colored lights (red, green, blue) to tell sensors apart, though it does not allow assigning unique chime sounds to each. Easy to Install & UseThis wireless doorbell can be powered by connecting to a USB port or by installing batteries (the infrared sensor requires 3 AAA batteries and the receiver requires 3 AA batteries) to operate. Both the infrared sensor and the receiver come with a mounting base. The motion sensor doorbell can be rotated 360 degrees from left to right and 180 degrees from top to bottom