General Tools DT310LAB Digital Lab Thermometer with 8-Inch Stainless Steel Probe Lab thermometer has a stainless steel probe; hi and lo alarms make it a great industrial thermometer with a variety of applications Digital thermometer has an on/off switch; food safety thermometer has auto power-off to conserve battery life Minimum/maximum memory and data hold make this the ideal scientific and industrial thermometer Thermometer has a readout range of-58 to 302 Degrees Fahrenheit, (-50 to 150 Degrees Celsius) Convenient Fahrenheit/Celsius switch; digital food prep thermometer comes with a pocket clip for easy of storage during work