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Kerui M536 58 tones led light digital thermometer display wireless doorbell

Digital thermometer display
58 tones available
4 volumes adjustable
Memory function
Fixed-tone buttons available
Availability:
  • M536
  • Kerui

Features

Digital thermometer display

58 tones available

4  volumes adjustable

Memory function

Fixed-tone buttons available


Technical parameters

Working voltage: USB 5V or 3*AAA batteries 

Static current:<300uA

Working current<100mA

Size: 138*100*88mm


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