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Taidacent 24V Audio Signal Trigger Relay Module Sound ...
https://www.amazon.com/Taidacent-Signal-Trigger-Control-Performance/dp/B07TXGD4K2
Module function description: The module detects that there is an audio signal relay turned on, no audio signal is delayed, and the audio trigger signal is continuously received within the delay time. The relay is always on, the relay will not be disconnected and …
Amazon.com: RDL ST-ACR1 Line-Level Audio Controlled …
https://www.amazon.com/ST-ACR1-Line-Level-Audio-Controlled-Relay/dp/B004ZKY0FC
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. - Power Supply Not Included
Audio Signal Control Switch Delay Relay Module Sound ...
https://www.aliexpress.com/item/1005001812974541.html
Cheap Demo Board Accessories, Buy Quality Computer & Office Directly from China Suppliers:Audio Signal Control Switch Delay Relay Module Sound Automatic Detection Time Delay Disconnection1 999S Adjustable Enjoy Free Shipping Worldwide! Limited Time Sale …
ST-ACR1 ‐ Line-Level Audio Controlled Relay - 0.5 to 5 s
https://rdlnet.com/product.php?page=130
Module functions include signal detection, switching, pre-amplification, format conversion, line driving, power amplification, mixing, distribution, gain control, equalization, routing and more. Each STICK-ON is an ultra-compact module engineered to provide higher performance and longer life than other industry products.
Switching Controlled by an Audio Signal | Radio Design Labs
https://www.rdlnet.com/blog/tips/switching-controlled-by-an-audio-signal/
RDL ST-ACR Series Audio Controlled Relays are used in any application where an audio signal must be used to create either a relay closure or Open-Collector output to control another piece of equipment or a circuit. Common applications include: Juke Box overrides Background Music AN-2024; Silence or “Dead Air” Sensor in broadcast environments
Cebek PM-11 | Audio Signal Controlled Relay Switch Module ...
https://quasarelectronics.co.uk/Item/cebek-pm-11-audio-signal-controlled-relay-switch-module
Cebek PM-11 (CPM011) - Audio Signal Controlled Relay Switch Module. The Cebek PM-11 is an audio signal activated switch with a mains rated relay output. It accepts line level audio signals and has a user adjustable trigger level sensitivity. The non-latching relay turns on when the audio input signal rises above the trigger threshold and turns off immediately the audio signal drops …
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