Awesome pedigree the javelin pro duo is a professional food thermometer based on the #1 best-selling thermometer, the javelin. This larger, top-of-the-line instrument has a 4.5" probe that extends to a total length of 10.75", thus keeping your hands away from the heat when cooking at the grill or in the oven. Display of progress using an ultra large 2" antifog backlit display, the javelin pro duo can display spectacularly clear and bright readouts at every angle by automatically rotating itself depending on how the device is held. Intelligent design the javelin pro duo maintains an outwardly simple appearance, but under the hood is an intelligent software that lets you know when the temperature has stabilized via an audible chime and then holds it. No more twisting your neck and guessing for readings. It is the perfect instant-read thermometer for meats, liquids, candy, and baked goods. Cheap & dangerous imitators cheap imitators have flooded the market with slower and less accurate products that aren't approved by any food-safety agencies. Why take the risk? Javelin pro or pro duo? The javelin pro duo shares the same impressive performance as the pro. However, the pro duo has a ultra high-definition ambidextrous lcd display that rotates depending on how it the device is held, a function useful for awkward angles and lefties alike. Specifications - response time: 3 seconds to within 1°f of final temperature in moving boiling water (212°f) - accuracy: ±0.9°f @ -4~302°f (±0.5°c @ -20~150°c) - range: -40~482°f (-40~250°c) - battery: 1x cr2032 - battery life: 4,000+ hours - auto-off: Yes - °f/°c configurable: Yes the javelin pro duo is covered by our 3-year warranty. Lava tools javelin pro duo is certified by nsf, ce, rohs.