The Snap On EETH300 Diagnostic Thermal Imager is a high-quality automotive tool designed for determining the temperature of various components in a vehicle. With a 3.5mm imager head size and a temperature range of -4° to 840° F, this infrared thermal imager provides accurate and detailed readings for auto inspection and troubleshooting. Made in the United States by the trusted manufacturer Snap On, this unit offers reliable performance and essential information for maintaining and repairing automotive systems.