Reading Magnifier, 100mm, 20cm Focal Length Material_Ceramic For measuring the specific gravity

For measuring the specific gravity of light liquids

3 inches for condensers and flasks

illustrating how differential thermal expansion makes and breaks a low-current circuit

letting students read image height and position directly off the projected real image during focal-length investigations

this two-wire potentiometer mounts on a metal base for stability during extended laboratory measurements

Reading Magnifier, 100mm, 20cm Focal Length Material_Ceramic For measuring the specific gravityPairs a 100mm aperture with a 20cm focal length for the lowest magnification in the chrome framed reading magnifier line, well suited where breadth of view matters more than zoom.