This thermometer is perfect for taking concrete temperatures. Direct reading thermometers with dual Fahrenheit and Celsius scales and external adjustment for recalibration. Made with a stainless steel stem and internal bimetal temperature sensing element. These thermometers will maintain an accuracy of 0.5% when used with the stem immersed over 2-in (5.1 cm) in the material whose temperature is being measured. The dial is 1 ¾-in (4.5 cm) diameter and the stem is 8 in (20.3 cm) long. Dial Therm. 50° to 550°F w/10° divs. and 10° to 290°C w/5° divs., glass face.