Thank you very much for choosing the TBBSC cooking thermometer.It is good for measuring food temperature and normal contact temperature testing.The meter is easy to operating.Justing push out the probe cover and install the battery,touch the object and press the ON button to measure the temperature.Working Voltage: 1.5V;Low Battery Sensation and Display; Lightweight and Portable. Specifications 1、React very quickly and provide accurate temperature results in 4~5 seconds 2、Three buttons for operation (1)on/off button (2)hold button (to keep the temperature read in place) (3)ºF/ºC button (to switch between Celsius and Fahrenheit). 3、A long stainless steel probe is able to be folded up for storage and with 11cm in length protects your hands from heat. 4、Large LCD display for easily reading:Wide temperature measuring range: -58°F to 572°For -50°C to 300°C 5、Measuring Accuracy: ±1°F for -4°F to 392°F 6、Powered by 1 AAA Battery (not included) How to Use 1. Install the battery correctly 2. Press the on/off button to turn on the thermometer 3. Unfold the probe 4. Insert it into the cooking food about 4 seconds, a highly accurate temperature read will be shown in the display, very easy to use. (Note: temperature chart is printed on the instruction for you to refer to) Package Included 1x Digital thermometer Warning:Please keep the thermometer at the place that children cannot touch to avoid getting hurt,as the probe is sharp.Cover the probe after using. Note: All TBBSC products come with a 1-year warranty and 100% TBBSC Satisfaction Guarantee to make your purchase worry free. Simply contact us or your vendor if you have any questions. Customer satisfaction is our highest priority.