Greencycle Wireless Door Open Sensor Chime

GREENCYCLE Magnetic Sensor Door Chime for Business Home Office Store when entering Its an entrance alarm that alerts you when someone, or something, enters or exits through a monitored zone. Product Features: Easy to Install and Use 48 Chimes for Your Choice 5 Volume Levels from 0 ...GREENCYCLE Magnetic Sensor Door Chime for Business Home Office Store when entering Its an entrance alarm that alerts you when someone, or something, enters or exits through a monitored zone. Product Features: Easy to Install and Use 48 Chimes for Your Choice 5 Volume Levels from 0-97dB (included silent mode) Receiver with Nightlight Function 7 Adjustable Lightness for Nightlight Function (included off mode) Up to 600ft Wireless Range in Open Space Low Power Consumption of Receiver Low Battery Indication of Sensor DIY Pairing, can expand more receivers/magnet sensors/push buttons Smart Memory Function, no need to configure door chime settings (Chimes, Volume, Lightness) again if unplugged Music Rhythm Flashlight on Receiver (bright light flash when the two part of sensor is separated, no matter it is with volume up or in silent mode/ nightlight mode) Specifications: Working Frequency: 433.92MHz Receiver Working Voltage: 80v-275v AC Receiver Standby power consumption: 100mW (about 0.8KW.H per year) Magnetic Sensor Battery: AAA battery Battery Life: up to 2 years lifespan Working Environment Temperature: Receiver: -20~70, Magnetic Sensor: -10~60 Working Environment Humidity: Receiver: <90%, Magnetic Sensor: <90%"