ST-ACR1 Audio Controlled Relay

Our Part Number: ST-ACR1
  • Quick, convenient install
  • Reliable
  • Switch online level sources
  • Silence sensing
  • Two multiturn trimmers included

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List Price: $162.25


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The ST-ACR1 is an Audio Controlled Relay in the STICK-ON series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR1 is designed to switch on line level sources. Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold. The delay adjustment range for the ST-ACR1 is from 0.5 seconds to 5 seconds. Control Switching from Audio Signal; Switching from Line Signals; Silence Sensing; DPDT Switching Contacts; Open-Collector SLAVE Output.

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