Minute Timer Lab Equipment and Supplies_Metal Labware Regulated dual AC/DC power supply

Regulated dual AC/DC power supply displaying voltage and current on independent digital readouts

fixed bipolar 8V and high-voltage 125/250V DC outputs

Insulated 10

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

Minute Timer Lab Equipment and Supplies_Metal Labware Regulated dual AC/DC power supplyEconomical 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.