InstrumentDescriptionLeast CountUsage
Metre Rule and Measuring TapeUsed for measuring lengths and distances1 mmLengths of objects, large distances
Vernier CaliperMeasures small lengths with high precision0.1 mmThickness, diameter, internal/external diameters
Screw GaugeMeasures smaller lengths than vernier calipers0.01 mmThickness of small objects like wires
Physical BalanceMeasures mass with high precisionN/AMass of objects
Measuring CylinderMeasures volume of liquids1 cm³Volume of liquids in ml or cm³
StopwatchMeasures time intervalsN/ATime intervals for experiments
PlantUML Diagram