NineLeaf 4PK Wireless Motion Sensor Door Chime — 433MHz, 48 Ringtones, 5 Volume Levels (97dB), 1300ft Range, Easy Install

Compact, plug-and-play chime kit from NineLeaf (4PK) that combines a wall/door-mounted motion detector with a plug-in receiver. The receiver requires no setup—just plug it in—and the detector mounts with screws or double-sided tape. A rotatable base allows precise aiming: 360° horizontal and 180° vertical adjustment for optimal coverage. Four operating modes are provided: Welcome, Doorbell, Alarm, and Nightlight, and the sensor instantly transmits alerts to the receiver when movement is detected at driveways, porches, gates, sheds, offices, walkways, pools and similar areas. Choose from 48 ringtone options and five volume settings up to 97dB; a silent flashing mode is available for hearing-impaired users or quiet environments. The built-in soft night light offers seven brightness levels for additional convenience. Using upgraded 433MHz wireless technology, the system maintains a reliable, interference-resistant connection with a control range up to 1300 ft and supports DIY pairing—one receiver can be linked to as many as 32 wireless buttons. Energy-efficient design: receiver standby consumption is 100mW (about 0.8 kWh per year). The detection transmitter supports battery power and USB dual power supply. Note: detector is not waterproof.