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
Energy Tube, teaching resource for an array of scientific concepts: open and closed circuits, conductors vs. Insulators, light waves, sound waves,currents, and energy, When a conductor touches both of the electrodes on tube, tube emits a sound and flashing red/green/blue LED lights
The Helpinghands Magnifier From Carson Is A Hand-Held Or Hands-Free, Fully Adjustable Led Lighted Soldering And Hobby Magnifier, It Contains A 2X Power Distortion-Free Acrylic Lens (4.3 In Lens Diameter).
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.
Energy Transfer Apparatus - Malvern small motor / generator, 1. 5 to 4. 5 V motor with 15 mm diameter V pulley. Mounted on base with 4mm socket terminals. Size 15 x 10 cm
Lead Free Solder with Easy Pen Dispenser, Cheap solder ruins irons, destroys projects and makes smoke billow from our ears, affordable, flows and melts beautifully, best dispenser, saves a lot of solder, No longer break off sections of solder
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