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3V or 5V power supplies
Bring some solar powered kinetic art into your home
This detector needs to be close to the source to detect it
The kit of components includes:
Great for your intelligent automated garden system
EMF Detector Sale 3V or 5V power suppliesThis electronic circuit detects changes in local electro magnetic fields and converts them to human audible sounds. Electro magnetic fields are all around us, but are usually invisible and silent. This detector uses two inductors to give a stereo audio output of the noise created by electro magnetic fields. This is useful for investigating electronic circuits, checking power supplies and investigating the unseen world around us. This kit includes a
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