conductivity tester, handheld device provides a qualitative visual indicator of the conductivity of different solutions, acids or salts, Two brass probes can be touched to a solid substance, or immersed in a liquid, to show conductivity on green LEDs
Squishy Circuits Deluxe kit, It comes with more items than the standard kit and comes with pre-made doughs, This kit also includes a deluxe battery holder which has a knob that allows your lights to blink and buzzers to beep at different speeds.
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