Glass Precision Liquid in Glass Thermometers meet requirements for high precision temperature measurement. They are also individually serialized to enable NIST traceability. VEE GEE Glass Thermometers are highly suitable for general lab use, schools, and testing. They are available in a variety of ranges to meet any application and feature white backing and spirit-filled liquid. Features permanent markings and non-roll fittings. Weight : 20 g.