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Learn More About the RDL ST-ACR1M

RDL ST-ACR1M Microphone Level Audio Controlled Relay 0.5 to 5 s Delay
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    RDL ST-ACR1M Microphone Level Audio Controlled Relay 0.5 to 5 s Delay

    Manufacturer: Radio Design Labs

    Item #: ST-ACR1M   •   MFG #: ST-ACR1M


    List Price:$134.36
    Our Price:$97.95

    free ship
    Availability: Usually ships in 3-10 business days
    This item is currently out of stock and will ship the minute we receive it – normally 3-10 business days. Need it sooner? Call 800-522-2025 and we'll make it happen,or email Customer Service for expedited delivery options. Certain Non-Stock Items Valued over $50.00 may Ship FREE UPS GROUND in the Continental US. Multiple quantities of the same non-Stock Item Valued below $50.00 may be ordered to meet the $50 minimum order requirement to qualify for Free UPS Ground Freight. This offer does not apply to certain freight-intensive or hazardous items. Certain restrictions may apply.



      Required Accessories

      Each of the ST-ACR products 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-ACR-1M is designed to switch on low-level sources, such as microphones or mic-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 -65 dBu and -20 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold. The adjustment range is from 0.5 seconds to 5 seconds.

      Required Power Supply RDL PS24V Sold Separately

      • Features

        • Switching Controlled by Audio Signal
        • Sensing of Microphone-Level Signal
        • Silence Sensing
        • DPDT Switching Contacts
        • Open-Collector SLAVE Output

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