The RT600C is Rated #1 by a leading Cook's magazine. This Super-Fast ThermoWorks Pocket Thermometer reads temperatures in just 5 seconds. In use at thousands of restaurants, food plants, labs and by health inspectors world-wide. Perfect affordable choice for home or commercial use. IMPROVED ACCURACY Upgraded to ±0.9F up to 212F. This accuracy is only found in professional instruments. Thoroughly tested against NIST-traceable standards. SPEED Faster than any other thermometer in this price range! The reduced tip is only 1/16" diameter to comply with USDA meat thermometer requirements. Fully speed-tested in ThermoWorks Standards Lab to reach within 1F of the final temperature in only 5-6 seconds at any temperature in the range. LONGER BATTERY LIFE Uses a reliable CR2032 battery with circuit improvements to reliably allow 5,000 hours of continuous use between battery changes. MAX/MIN FUNCTION Saves the highest and lowest temperatures since your last reset. Great for checking dishwasher, fridge or freezer temps. When you pull your roast or turkey from the oven, insert the thermometer and leave it while the meat rests so you know the highest reading. AUTO-OFF AFTER 1 HOUR If left on, shuts down after 1 hour. Long enough to make the Max/Min function useful. What good is Max/Min memory if the thermometer turns off too soon? TOUGH COMMERCIAL DESIGN Minimal food and grime traps. Rubberized button panels are sealed and withstand temperatures to 190°F (for commercial dishwasher testing). No welded or braised joints on the probe that would shelter microbes or create likely breakage points. Designed to survive short term, shallow immersion - you can wash the thermometer under the tap or use it with wet hands. Rated to IP65. NSF approved for use in commercial food applications. WARRANTY One year coverage on material and workmanship including any failure in the circuit.