Knock-Knock Sensor (FX12-KNOCK)The FX12 KNOCK is an analog amplifier for vibration sensors. It will amplify small signals from piezo and other low level sensors for reading by a 0 10V input. This kit includes a knock sensor, an FX12 KNOCK amplifier board and a 12" 4 pin JST cable. You will also need a BAC V with any FX45 expander module (not included). Simply connect, configure, and knock another puzzle off your to do list!
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