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M521
Kerui
Kerui Doorbell - Life happens at the front door
M521 Wireless doorbell
Features
57 chimes available
4 volume levels adjustable
Memory function
LED indicator light
Fixed-chime buttons available
Technical parameters
Working Voltage: 110-240V/50-60Hz AC
Working Power: 0.5W
Receiving Frequency: 433MHz
Distance Range: 500 feet
Maximum Loudness: 100 dB
Size: 96*68*32mm
F55 Push Button
Features
Emergency button
One Button transmitter
Fashion design
Technical parameters
Wireless frequency: 433MHz
Distance range: 500 feet
Size: 65*34*18mm
Kerui Doorbell - Life happens at the front door
M521 Wireless doorbell
Features
57 chimes available
4 volume levels adjustable
Memory function
LED indicator light
Fixed-chime buttons available
Technical parameters
Working Voltage: 110-240V/50-60Hz AC
Working Power: 0.5W
Receiving Frequency: 433MHz
Distance Range: 500 feet
Maximum Loudness: 100 dB
Size: 96*68*32mm
F55 Push Button
Features
Emergency button
One Button transmitter
Fashion design
Technical parameters
Wireless frequency: 433MHz
Distance range: 500 feet
Size: 65*34*18mm