The ReptiTemp® Digital Infrared Thermometer is a small pocket sized Infrared Thermometer that instantly measures terrarium temperatures with the click of a button. Perfect for all reptile and amphibian keepers! This great tool will allow keepers to monitor thermal gradients, basking sites, shelters, incubation and hibernation temperatures, and more. ReptiTemp® Digital Thermometer can be set to read temperatures in both Fahrenheit (-28° to 230°F) or Celsius (-33° to 110°C). There is a Min/Max function that allows you to monitor the fluctuations in your terrarium over time. Battery included. Great for Monitoring Basking Areas, Thermal Gradients, Incubation, and Hibernation Temperatures. Temperature measurement Range -28° to 230°F (-33° to 110°C) Min/Max Function °C/°F Switch Includes one CR2032 Lithium cell battery