Registered firefighters 1, 2, and 3 equipment contractors
Registered electrical contractor, registered plumbing contractor
Registered minor works contractor (Levels 2 and 3)
Competent persons for mandatory window inspection programs

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KB-D21M

  • The KB-D21M monitors up to 5 main power amplifiers which will be switched automatically to the spare amplifier should any one fail. With 5 independent channels, it can also be operated manually for power amplifier upgrades and maintenance. Each channel has volume control, manual switch, and status indicator.

  • Can connect to 5 main amplifier, and 1 spare amplifier
  • Can automatically detect the fault of amplifier, and shift the signal of the first disabled main amplifier to the spare amplifier. And the rest display the fault condition through indicator
  • When device detects the fault, it can transmit warning tone by itself
  • There are three types of indicators: Main, Fault and Spare
  • Remote power control, remote inquiry of fault, and spare channel shifting control
  • Short circuit power activation
  • Apply address setting switch, use decimal system to set the local address

 

  • Comply with CE and RoHS standards