Description
Used to compare EMFs and measure internal resistance by the null-deflection method
this microphone amplifier connects a microphone input to both an integrated speaker and an oscilloscope-driving amplified signal for waveform study
midline structures
31mm and 125g
6-Piece Density Cubes Set with Hooks Subcategory_Scales and Balances Used to compare EMFs andSix metal 20mm density cube set with hooks brass, lead, zinc, copper, aluminum, and iron for water displacement and direct measurement comparisons of material density.
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
























