Radix manufactures Mercury in Steel Temperature Gauges. Radix is an ISO9001:2000 certified company. The Mercury in Steel Temperature Gauges uses the principle of mercury expansion and has the temperature range of minus 30 degree Centigrade to 600 degree Centigrade. It is available in rigid stem and capillary type for remote sensing. The Mercury in Steel Temperature Gauges has the accuracy of plus-or-minus 1% FSD.