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Kerui Doorbell - Life happens at the front door
M536 Thermometer Display Doorbell
Features
Digital thermometer display
Alarm for set temperature
500-feet range
58 chimes optional
4 volume levels adjustable
Memory function
Fixed-tone buttons available
Double modes power supply
Technical Parameters
Working voltage: USB 5V or 3*AAA batteries
Static current: <300uA
Working current: <100mA
Distance range: 500 feet
Size: 138*100*88mm
F52 Push Button
Features
Waterproof button
One Button transmitter
Long battery life
Long transmitting distance
Technical Parameters
Operating voltage: DC12V
Standby current: ≤5uA
Transmitting current: ≤15mA
Distance range: 650 feet (in the open area)
Battery life: 1 to 2 years
Wireless frequency: 433MHz
Size: 50*50*21mm
Kerui Doorbell - Life happens at the front door
M536 Thermometer Display Doorbell
Features
Digital thermometer display
Alarm for set temperature
500-feet range
58 chimes optional
4 volume levels adjustable
Memory function
Fixed-tone buttons available
Double modes power supply
Technical Parameters
Working voltage: USB 5V or 3*AAA batteries
Static current: <300uA
Working current: <100mA
Distance range: 500 feet
Size: 138*100*88mm
F52 Push Button
Features
Waterproof button
One Button transmitter
Long battery life
Long transmitting distance
Technical Parameters
Operating voltage: DC12V
Standby current: ≤5uA
Transmitting current: ≤15mA
Distance range: 650 feet (in the open area)
Battery life: 1 to 2 years
Wireless frequency: 433MHz
Size: 50*50*21mm