Memory stores 10 complete sets of temps (120 total) with quick and easy recall. Special software prevents accidental erasure of temps. Take tire temps in the pre-programmed order or select any order you prefer. Computes tire temp averages for temperatures just taken, temperatures recalled from memory, or you can even manually enter temps taken previously. Advanced electronics stabilize your readings quickly giving you accurate, consistent results. Pyrometer comes with a built-in night light with auto shutoff, fast response coiled cord adjustable tire probe, and carrying case. It also features a built-in four car stopwatch with 70 lap memory for all 4 cars.