DIY Magnet Polarity Tester Electronic Kit 3V


SKU: bngd-1872855 Category:


Description The product will light up the LED lights according to the Hall sensor to sense the north south of the magnet The south pole lights up in blue and the north pole lights up in red The 3V button battery is used for power supply which is convenient and simple Built in toggle switch more power saving Package Included Magnet polarity testerComponent nameparameterPCB identificationquantityPCB boardPCB1LED lights3mmLEDredLEDred13mmLEDblueLEDblue1Hall sensorFour feetAH227A636J602771Toggle SwitchesStraight three pinswitch1Button Battery3VBattery1Battery base3V1Four color circlesPlug in resistance1kBrown black red goldR1 R22


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