Thermapen thermometers incorporate a large digital display for a precise read-out of, they operate over the range of -49.9 to 299.9 °C with a 0.1 °C resolution and an accuracy of ±0.4 °C. Resolution can be switched to 1°C, if required, via a switch in the battery compartment.
The thermometer will power off automatically after ten minutes, maximising battery life. This feature can be disabled if not required.
Both low battery (icon) and open circuit indication are displayed, when applicable. Each Thermapen is powered by two lithium coin cell batteries with a minimum life expectancy of 1500 hours.