19+ Cast Iron Thermometer. Resistance thermometers are based on the principle of increase in electrical resistance with increasing temperature. These thermometers are crafted from cast iron and can be used inside or out.
1,046 cast iron thermometer products are offered for sale by suppliers on alibaba.com, of which temperature instruments accounts for 3%, household thermometers accounts for 1.
Its usefulness derives from its relatively low melting temperature. Made out of cast iron it will withstand all sort of abuse with no problem. Its usefulness derives from its relatively low melting temperature. If so, what is such a thing called?