PROJECT SC3 #18 VOX SOUND SWITCH

PROJECT SC3 #18 VOX SOUND SWITCH

SKU: KJ8084
$15.95Price
This sound activated switch closes a relay when a loud enough sound is heard. It switches off when the sound stops. Ideal for radio transmitters or surveillance applications. �Kit includes PCB, relay, electret mic & electronic components �12VDC required Instructions sold separately or withing the Short Circuits book range,
 
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