American Educational Lung Demonstration Kit Mallet has one hard end

Mallet has one hard end and one soft end for contact with tuning forks

and UL listed

effectively avoid electromagnetic interference by using photoelectricity-isolation

DC offset range -100%~100% pp

2% DCA: 40A ± 2

American Educational Lung Demonstration Kit Mallet has one hard endLung demonstration kit The kit includes a transparent plastic container, y tube "trachea", balloon "lungs", rugged rubber sheet "diaphragm" and the necessary hardware and instruction sheet Allow students to build a demonstration model of a human lung and learn the basic concepts of respiratory physiology Allow students to build a demonstration model of a human lung and learn the basic concepts of respiratory physiology. The kit includes a transparent