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Designed to respond to any sound and activate a relay. A sensitivity control is included to adjust the gain of the microphone. Operating voltage: 9V yo 12Vdc Relay : 5Amps at 220Vac
12VDC TEMPERATURE CONTROLLER BOARD | XH-W1209
DC-DC BUCK CONVERTER LM2596S STEP-DOWN MODULE
DC-DC BUCK CONVERTER XL4015 STEP-DOWN MODULE
EFK 12000 Just Whistle
EFK 12001 Infra -Red Link
Unavailable
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