Glucometer, London, England, 1885-1936
- maker:
- Joseph Long
"Longs" new glucometer, saccharometer by Joseph Long, 43 Eastcheap London
This glucometer or sacchrometer is a type of hydrometer used to estimate the sugar content of a solution. The presence of sugar in a patient's urine is a sign of diabetes. This glucometer was made and invented by Joseph Long, a scientific instrument maker based in London.