ASF921 Dahua Emergency Break Glass Button

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Description

Dahua ASF921 Emergency Break Glass Button

  • Photoelectric control technology to prevent the mechanical failure
  • Ultra-low temperature design, more safe and more durable
  • Ultra low power design, more durable and more environmental protection
  • 500,000 electricity aging test
  • Built-in reverse current protection circuit
  • A microprocessor chip control circuit