1A DC Interchangeable Dial for Demonstration Meter Metal Labware_Metal Bases & Rods providing a stable heating platform

providing a stable heating platform for introductory chemistry and general science classroom work

Double-concave glass lens at 3-inch diameter and 200mm diverging focal length

Hand-painted dicot root transverse section model exposes epidermis

Compact 300mm black lead with a 2mm banana plug at one end and a crocodile clip at the other

1A DC Interchangeable Dial for Demonstration Meter Metal Labware_Metal Bases & Rods providing a stable heating platformOne amp AC scale on a 315x115mm laminated panel with sealed shunt, dropping into the demonstration meter as a 0 1A AC ammeter for transformer and household current measurements.