These thermometers are constructed entirely of Type 304 stainless. Used extensively in the laboratory where a nonfragile, easy reading corrosion resistant instrument is needed. A manual pre-set indicating pointer and an adjustable clamp for mounting is supplied. Dial diameter: 1.75 inches. Stem diameter 0.15 inches. Stem length: 8 inches. Accuracy: 1% of span. Plastic lens.