Description
Relay-based NAND-gate module on a demonstration base
Polished hardwood test tube rack with a traditional two-tier design
covering metals
this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work
sized to read one step up from the 0-1A meter when student circuits draw past the lower meter's full-scale deflection
Opisometer Geology Relay-based NAND-gate module on aOpisometer with a knurled wheel on a threaded spindle, rolling along curved lines on maps, charts, and drawings to convert winding distance into straight line length for geography coursework.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
recommand products
