Selectable DC Battery Eliminator Power Supply, 1.5-12V 2A Material_Wood this 15-inch motion-converter model shows

this 15-inch motion-converter model shows the engineering principle behind crankshaft pistons and rotary-to-linear mechanisms

Wood-handled collecting net pairs a sturdy grip with fine mesh netting for classroom field trips and introductory entomology collection work

003 mm accuracy at 10 mm

sized to dust evenly over paper or around a magnet to make field lines visible during introductory magnetism work

5 Pa Bourdon gauge on a powder-coated metal base for whole-class visibility

Selectable DC Battery Eliminator Power Supply, 1.5-12V 2A Material_Wood this 15-inch motion-converter model showsSelectable DC voltage at 1. 5, 3, 4. 5, 6, 7. 5, 9, and 12 volts on this 2 amp battery eliminator power supply, replacing batteries in physics and electronics classroom experiments.