Taylor Precision Products Digital Instant Read Pocket Thermometer This compact pocket thermometer measures temperatures from 58- to 302 degrees Fahrenheit. A 1/3-inch LCD display is easy-to-read and updates every second. Additional features include a Fahrenheit/Celsius switch and an on/off switch to preserve battery life. A plastic storage case with pocket clip provides safety and portability. Requires one (1) 1.5-volt watch battery. Battery is included.