AUER SIGNAL

Auer Smart Buzzer

SD5SA Smart Dot 50 Standard Audible Multitone

The Auer Signal Smart Buzzer is a compact 50 mm multi-tone acoustic signaling device with standard M22 mounting for easy integration into control cabinets and machinery. With >90 dB output, selectable tones, and IP66/IP69/IP69K protection, it delivers reliable acoustic alerts in demanding industrial environments.
  • Washdown rated 90db LAFmax Piezo Buzzer
  • 8 different tones (7 of which with reduced volume)
  • Active Inrush Current Control
  • Compact size
  • Black, Stainless Steel and White

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Available in several variants

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Technical data

IK class 6
IP class IP66, IP69K, IP6K9K, IP69
Number of tones 8  
Supply voltage 24 V
Temperature operational max 70 °C
Temperature operational min -40 °C
Weight 45 g

Product description

The Smart Buzzer from Auer Signal is a compact, high-performance multi-tone acoustic signal device with a 50 mm diameter and standardized M22 mounting – ideal for control cabinet and machine integration. As the acoustic complement to the Smart Dot 50 series, it integrates seamlessly into the Smart Signaling 50 platform.


With a sound output of > 90 dB LAFmax, modern piezo technology, and multiple selectable tones, it provides clear acoustic warning and status signals, even in loud industrial environments. Thanks to its high protection rating (IP66 / IP69 / IP69K / IP6K9K) and an operating temperature range from -40 °C to +70 °C, the Smart Buzzer is perfectly suited for demanding applications in mechanical engineering and industrial automation.

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