Thermometer with opal scale and mercury as indicator.

The thermometer has a ball at its upper end.

This glass thermometer is a high precision instrument.

The temperature scale is printed on an opal plate inside the thermometer so that it is totally resistant to acids and alkalis.

Applications: Thermometer for liquids like water, also suitable for liquids more corrosive like acids and alkalis. Thermometer for boat engine, laboratory and industrial refrigeration