Merit Instruments HHDL-PT Series single temperature display digital thermometer comes loaded with features, including a built-in data logger capable of storing up to 61,440 data points. Unit comes standard with a PT100 and PT1000 RTD probe, switchable F&C temperature display, 3 AA batteries and a protective carrying case...all with a standard 5 year warranty. For full specifications, please visit our product data sheets page and download the product pdf.