NineLeaf Wireless Motion Sensor Door Chime - 9PK, 48 Ringtones, 5 Volume Levels, 97dB, 1300ft Range, Easy Install

This 9-pack NineLeaf motion sensor chime delivers a simple, flexible alert system for homes, offices and hotels. The receiver is true plug-and-play — just plug it into an outlet and it’s ready. Each detector mounts easily to a door or wall using screws or double-sided tape and sits on a rotatable base that adjusts 360 degrees horizontally and 180 degrees vertically so you can aim it for best coverage. Multi-mode sensing: the unit supports four operating modes — Welcome, Doorbell, Alarm and Nightlight — and immediately transmits an alert to the receiver when motion is detected. It’s designed for use in driveways, front porches, gates, homes, sheds, offices, walkways, pools and similar locations. Sound and light options: pick from 48 ringtones and set one of 5 volume levels up to a maximum of 97dB so you won’t miss a notification. A silent flashing mode makes the system suitable for users with hearing impairments or for quiet environments such as when a baby is sleeping. The built-in soft night light offers 7 brightness levels for added convenience. Reliable wireless and pairing: using upgraded 433MHz wireless technology, the system supports an obstacle-free control range of up to 1300 ft for through-the-wall performance without interference. The DIY pairing function allows a single doorbell receiver to be connected to up to 32 wireless buttons for scalable coverage. Power and limitations: receiver standby power consumption: 100mW (about 0.8 kWh per year). The detection transmitter supports battery and USB dual power supply. Note: the detectors are not waterproof.