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H-D28
H-D28 H-D28


DC door bell

Item No.:H-D28

  • Receiver plug selection:<1.0mA
  • Working frequency:315/433MHz±2MHz
  • Receiver battery:3xAAA (not included)
  • Sound volume range:20-85dB±5dB (4 levels volume adjusted)
  • Receiver working voltage:DC 4.5V
  • Transmitter rated voltage:≤10mw
  • Size of receiver:143X98MM
  • Size of transmitter:75X42M

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