Minute Timer Lab Equipment and Supplies_Metal Labware A fully adjustable vibrator system

A fully adjustable vibrator system is incorporated and spark suppression capacitors are housed in the base

providing the cleanest hand-operated way to make and break a circuit during early electricity instruction with stackable modules

and a 60cm multicolored scale on a hollow wooden resonance box let students vary length and tension to test the physics of vibrating strings

Four-meter 6A extension cord with one 3-pin and three 2-pin sockets and a switched indicator-light handle

Minute Timer Lab Equipment and Supplies_Metal Labware A fully adjustable vibrator systemEconomical minute timer setting intervals up to one hour via a top knob, sounding a signal at the end of the period for classroom reaction monitoring and general laboratory run timing.