hand ac/dc generator science and education teaching instrument physics teacher demonstration teaching aids

notemeaning: you need to confirm the delivery time when placing an order!!!

[hand ac/dc generator] necessary for physics teaching! demonstrate electromagnetic induction, hand-operated power generation to light led.

dc ac one-click switching, gear transmission labor-saving, current and voltage can be measured.

reject boring theories and understand the principles by hand.

through iso9001 certification, supporting teaching plans, teachers preferred.

stimulate scientific interest and light up future dreams!