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Audio Frequency Activated Relay Board Kits

Audio Frequency Activated Relay Board Kits
Audio Frequency Activated Relay Board Kits
Audio Frequency Activated Boards from our Electronic Kits & Modules range for industrial, professional, educational and hobby applications
Cebek I-74 (CI074) - Audio Frequency Activated Relay Module, 150Hz-2KHz

This audio frequency switched relay board will activate the onboard relay when the module detects the user-set input frequency from 150Hz to 2KHz...

£11.40 +VAT, £13.68 Inc
In Stock
Cebek I-75 (CI075) - Audio Frequency Activated Relay Module, 2-15 KHz

This audio frequency switched relay board will activate the onboard relay when the module detects the user-set input frequency from 2 KHz -15 KHz...

£10.20 +VAT, £12.24 Inc
In Stock
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